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Cushion|Natural|GIA

1.00ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 6422980712

Certificate GIA 6422980712

Diamond specifications and retailer prices

From $2,238 SGD
As of November 6, 2026
Save $3,029 SGD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $5,267 SGD at MOH London · As of November 4, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6422980712. Listed at 19 retailers as of November 4, 2026, with prices from $2,238 to $5,267, a $3,029 spread on the same certified stone. MOH London lists it at $5,267. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6422980712
Dimensions6.15 × 5.36 × 3.56 mm
L/W Ratio1.15
Top View
6.15 mm5.36 mm1.00 ctJ / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6422980712
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,267 SGD|Low: $2,388 SGD|High: $5,330 SGD|Avg: $3,161 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 8$2,456 SGD
Retailer 3$2,466 SGD
Retailer 13$2,538 SGD
Retailer 4$2,634 SGD
Retailer 11$2,731 SGD
Retailer 10$2,755 SGD
Retailer 5$2,782 SGD
Retailer 14$2,803 SGD
Retailer 2$2,923 SGD
Retailer 12$3,096 SGD
Retailer 9$3,678 SGD
Retailer 6$3,710 SGD
Retailer 7$3,742 SGD
MOH London$5,267 SGD

32 data points across 14 retailers

19 retailers$2,238 SGD to $5,267 SGD

B+
Cheapest Retailer
-
$2,238 SGD
B
Retailer 2
-
$2,456 SGD
View
B
Retailer 3
-
$2,457 SGD
View
B
Retailer 4
-
$2,466 SGD
View
Retailer 5
-
$2,538 SGD
View
Price last confirmed 10 days ago
B
Retailer 6
-
$2,602 SGD
View
B
Retailer 7
-
$2,602 SGD
View
B
Retailer 8
-
$2,634 SGD
View
B
Retailer 9
-
$2,691 SGD
View
Retailer 10
-
$2,731 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$2,755 SGD
View
B
Retailer 12
-
$2,782 SGD
View
Final sale: no returns
B
Retailer 13
-
$2,803 SGD
View
B
Retailer 14
-
$2,923 SGD
View
B
Retailer 15
-
$3,096 SGD
View
B
Retailer 16
-
$3,678 SGD
View
Retailer 17
-
$3,710 SGD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$3,742 SGD
View
Most Expensive
C
MOH London
A6395629A · Nov 4
$5,267 SGD
£3,236 GBP
View
18 more retailers have this diamond
Prices start from $2,238 SGDSave up to $3,029 SGD

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.

B+
1.00ct Cushion
$2,238 SGD