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Cushion|Natural|GIA

1.00ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 1508655786

Certificate GIA 1508655786

Diamond specifications and retailer prices

From $1,142 USD
As of November 6, 2026
Save $458 USD (29%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,280 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1508655786. Listed at 11 retailers as of November 6, 2026, with a 40% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1508655786
Dimensions5.53 × 5.38 × 4.03 mm
L/W Ratio1.03
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
5.53 mm5.38 mm1.00 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1508655786
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 75.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,280 USD|Low: $1,047 USD|High: $2,597 USD|Avg: $1,493 USD|-12.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6$1,142 USD
Retailer 7$1,186 USD
Retailer 2$1,233 USD
Retailer 5$1,238 USD
Retailer 10$1,254 USD
Retailer 8$1,372 USD
Retailer 4$1,399 USD
Retailer 9$1,509 USD
Retailer 3$1,600 USD
MOH London$2,280 USD

42 data points across 10 retailers

11 retailers$1,142 USD to $1,600 USD

A
Cheapest Retailer
-
$1,142 USD
Final sale: no returns
A
Retailer 2
-
$1,186 USD
View
A
Retailer 3
-
$1,233 USD
View
Retailer 4
-
$1,238 USD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,254 USD
View
B+
Retailer 6
-
$1,372 USD
View
B+
Retailer 7
-
$1,399 USD
View
B+
Retailer 8
-
$1,509 USD
View
B+
Retailer 9
-
$1,539 USD
View
B+
Retailer 10
-
$1,600 USD
View
Most Expensive
MOH London
C03E2AA9D · Oct 29
$2,280 USD
£1,795 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $1,142 USDSave up to $458 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Cushion
$1,142 USD