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Cushion|Natural|GIA

1.00ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6431253100

Certificate GIA 6431253100

Diamond specifications and retailer prices

From $2,520 SGD
As of November 6, 2026
Save $2,859 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,973 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1ct natural cushion diamond

This 1ct natural cushion sits in the classic one-carat band, graded H 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 6431253100. Listed at 15 retailers as of November 4, 2026, with a 113% 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6431253100
Dimensions5.99 × 5.21 × 3.62 mm
L/W Ratio1.15
Top View
5.99 mm5.21 mm1.00 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6431253100
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.6%

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: $5,973 SGD|Low: $2,359 SGD|High: $5,998 SGD|Avg: $3,525 SGD|+2.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$2,520 SGD
Retailer 8$2,573 SGD
Retailer 10$2,713 SGD
Retailer 7$2,729 SGD
Retailer 6$2,789 SGD
Retailer 2$3,027 SGD
Retailer 4$3,257 SGD
Retailer 3$3,823 SGD
Retailer 5$5,379 SGD
Queensmith$5,973 SGD

39 data points across 10 retailers

15 retailers$2,520 SGD to $5,379 SGD

B+
Cheapest Retailer
-
$2,520 SGD
B+
Retailer 2
-
$2,573 SGD
View
Final sale: no returns
B+
Retailer 3
-
$2,713 SGD
View
B+
Retailer 4
-
$2,729 SGD
View
Retailer 5
-
$2,789 SGD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$2,859 SGD
View
B+
Retailer 7
-
$2,937 SGD
View
B+
Retailer 8
-
$3,027 SGD
View
B+
Retailer 9
-
$3,101 SGD
View
B+
Retailer 10
-
$3,101 SGD
View
B
Retailer 11
-
$3,204 SGD
View
B+
Retailer 12
-
$3,257 SGD
View
B
Retailer 13
-
$3,823 SGD
View
B
Retailer 14
-
$5,379 SGD
View
Most Expensive
Queensmith
6431253100 · Oct 28
$5,973 SGD
£3,670 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $2,520 SGDSave up to $2,859 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
$2,520 SGD