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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From $5,919 SGD
$4,630 USD
As of November 2, 2026
Save $5,654 SGD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,573 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1425256232. Listed at 20 retailers as of November 1, 2026, with prices from $5,919 to $11,573, a $5,654 spread on the same certified stone. MOH London lists it at $11,573. 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

1.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $11,573 SGD|Low: $5,691 SGD|High: $11,712 SGD|Avg: $8,082 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10$5,919 SGD
Retailer 6$6,258 SGD
Retailer 8$6,260 SGD
Retailer 11$6,660 SGD
Retailer 7$7,117 SGD
Retailer 4$7,536 SGD
Retailer 9$7,806 SGD
Retailer 2$8,581 SGD
Retailer 5$9,651 SGD
Retailer 3$11,382 SGD
MOH London$11,573 SGD

45 data points across 11 retailers

20 retailers$5,919 SGD to $11,573 SGD

A
Cheapest Retailer
-
$5,919 SGD
$4,630 USD
A
Retailer 2
-
$6,136 SGD
$4,800 USD
View
A
Retailer 3
-
$6,207 SGD
$4,855 USD
View
A
Retailer 4
-
$6,258 SGD
$4,895 USD
View
A
Retailer 5
-
$6,260 SGD
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
$6,286 SGD
$4,917 USD
View
A
Retailer 7
-
$6,622 SGD
CA$7,195 CAD
View
A
Retailer 8
-
$6,660 SGD
$5,210 USD
View
B+
Retailer 9
-
$6,683 SGD
$5,228 USD
View
B+
Retailer 10
-
$7,031 SGD
$5,500 USD
View
B+
Retailer 11
-
$7,117 SGD
$5,567 USD
View
B+
Retailer 12
-
$7,502 SGD
$5,868 USD
View
B+
Retailer 13
-
$7,536 SGD
£4,642 GBP
View
Retailer 14
-
$7,806 SGD
A$9,394 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$8,581 SGD
€6,393 EUR
View
Retailer 16
-
$8,662 SGD
$6,776 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$8,898 SGD
$6,960 USD
View
B+
Retailer 18
-
$9,651 SGD
ZAR 121,964 ZAR
View
B
Retailer 19
-
$11,382 SGD
$8,903 USD
View
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
$11,573 SGD
£7,128 GBP
View
19 more retailers have this diamond
Prices start from $5,919 SGDSave up to $5,654 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.

A
1.51ct Cushion
$5,919 SGD