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Cushion|Natural|GIA

1.51ct E SI2 Cushion Natural Diamond

EX • E/SI2 • GIA 6552502605

Certificate GIA 6552502605

Diamond specifications and retailer prices

From $5,906 SGD
As of November 5, 2026
Save $5,913 SGD (50%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $11,818 SGD at MOH London · As of November 4, 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552502605. Listed at 9 retailers as of November 4, 2026, with prices from $5,906 to $11,818, a $5,913 spread on the same certified stone. MOH London lists it at $11,818. 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
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.5°
OriginNatural
Grading LabGIA
CertificateGIA 6552502605
Dimensions7.67 × 5.92 × 4.09 mm
L/W Ratio1.30
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Needle
Top View
7.67 mm5.92 mm1.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552502605
Side View
Table 60.0%CrownGirdle: STK-VTKPavilion 35.5°Culet: NoneDepth 69.1%

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 5
Current: $11,818 SGD|Low: $5,906 SGD|High: $12,948 SGD|Avg: $8,396 SGD|-7.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4$5,906 SGD
Retailer 8$6,894 SGD
Retailer 6$7,150 SGD
Retailer 2$7,537 SGD
Retailer 7$7,596 SGD
Retailer 5$8,442 SGD
Retailer 3$8,758 SGD
MOH London$11,818 SGD

43 data points across 8 retailers

9 retailers$5,906 SGD to $11,818 SGD

A
Cheapest Retailer
-
$5,906 SGD
Retailer 2
-
$6,894 SGD
View
Price last confirmed 10 days ago
A
Retailer 3
-
$7,150 SGD
View
A
Retailer 4
-
$7,537 SGD
View
A
Retailer 5
-
$7,596 SGD
View
Final sale: no returns
B+
Retailer 6
-
$8,442 SGD
View
B+
Retailer 7
-
$8,478 SGD
View
B+
Retailer 8
-
$8,758 SGD
View
Most Expensive
B+
MOH London
41AAB6EEF · Nov 4
$11,818 SGD
£7,261 GBP
View
8 more retailers have this diamond
Prices start from $5,906 SGDSave up to $5,913 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
$5,906 SGD