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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2235954416

Certificate GIA 2235954416

Diamond specifications and retailer prices

From $4,331 SGD
As of November 5, 2026
Save $5,043 SGD (54%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,374 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 H 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 2235954416. Listed at 10 retailers as of November 4, 2026, with prices from $4,331 to $9,374, a $5,043 spread on the same certified stone. MOH London lists it at $9,374. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.88°
OriginNatural
Grading LabGIA
CertificateGIA 2235954416
Dimensions7.56 × 5.91 × 4.06 mm
L/W Ratio1.28
Key to symbols
Cloud, Needle
Top View
7.56 mm5.91 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235954416
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 35.88°Culet: NoneDepth 68.7%

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 5
Current: $9,374 SGD|Low: $4,331 SGD|High: $10,249 SGD|Avg: $6,350 SGD|-8.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$4,331 SGD
Retailer 7$5,057 SGD
Retailer 8$5,283 SGD
Retailer 4$5,503 SGD
Retailer 2$5,529 SGD
Retailer 6$6,280 SGD
Retailer 9$6,462 SGD
Retailer 3$6,794 SGD
MOH London$9,374 SGD

34 data points across 9 retailers

10 retailers$4,331 SGD to $9,374 SGD

A
Cheapest Retailer
-
$4,331 SGD
A
Retailer 2
-
$5,057 SGD
View
A
Retailer 3
-
$5,283 SGD
View
A
Retailer 4
-
$5,503 SGD
View
A
Retailer 5
-
$5,529 SGD
View
B+
Retailer 6
-
$6,280 SGD
View
B+
Retailer 7
-
$6,462 SGD
View
Final sale: no returns
B+
Retailer 8
-
$6,528 SGD
View
B+
Retailer 9
-
$6,794 SGD
View
Most Expensive
B
MOH London
0C16BD85B · Nov 4
$9,374 SGD
£5,759 GBP
View
9 more retailers have this diamond
Prices start from $4,331 SGDSave up to $5,043 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
$4,331 SGD