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Description

Riker Bros. Antique Sapphire, Diamond,
Gold Bracelet
Stones: Cushion-shaped sapphire weighing
1.82 carats; cushion-shaped sapphires weighing
a total of approximately 0.75 carat; mine-cut
diamonds weighing a total of approximately 1.00 carat
Metal: 14k gold
Marked: for Riker Bros.
Gross Weight: 20.00 grams
Dimensions: 8 inches x 3/8 inch

AGL Report # 1115697, dated July 7, 2021,
stating Natural Corundum, Sapphire, Thailand Origin,
No Gemological Evidence of Heat


More information about Riker Bros. Artist.

Condition Report*: Diamonds:
Avg Color: G-H-I
Avg Clarity: VS
Shape(s): Mine-Cut

Colored Gems:
Type(s): Sapphire
Shape(s): Cushion
Count: 1 - 25
Avg Quality: Good

Certified Gems:
Gem: 1
Lab: AGL
Certification #: 1115697
Carat: 1.82
Shape: Cushion
Origin: Thailand
Treatment: No Gemological Evidence of Heat
Type: Sapphire

Metals:
Platinum

Overall Condition: Good
Condition Notes: The center sapphire has been reset into its setting after previously becoming dislodged. Under magnification, all three sapphires exhibit abrasions along various facet junctions, consistent with age and wear. The mine-cut diamonds are particularly attractive, showing clean clarity and measuring approximately 5.00 x 5.15 x 3.15 mm to 5.15 x 5.25 x 3.00 mm. The piece bears the classic Riker Bros. hallmark, consisting of a sword piercing a crescent, positioned adjacent to a 14K stamp. Dating to circa 1905, this bracelet reflects the refined American craftsmanship of the early 20th century.
Riker Bros.: William Riker was born to Dutch immigrants in Montclair, New Jersey in 1822. He was an apprentice in the jewelry industry at the age of 15, and continued his studies in New York City before opening a successful shop in Newark, New Jersey. His jewelry firm became known for its use of transparent enamel without backing, which few American companies created. Over the course of his career, William created many patents involving mechanical processes for jewelry production. When William and one of his sons left the company, his other two sons changed the name from Riker and Sons to Riker Brothers. William died in 1898, and William Jr. continued leading the company until the 1940’s.

*Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only and should not be relied upon as statements of fact, and do not constitute a representation, warranty, or assumption of liability by Heritage. All lots offered are sold "AS IS".

Auction Info

Auction Dates
September, 2025
29th Monday
Bids + Registered Phone Bidders: 2
Lot Tracking Activity: N/A
Page Views: 417

Buyer's Premium per Lot:
25% of the successful bid per lot.

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Sold on Sep 29, 2025 for: $5,000.00
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