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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

ID • F/SI1 • GIA 2235655108

Certificate GIA 2235655108

Diamond specifications and retailer prices

From $5,292 SGD
$4,138 USD
As of November 1, 2026
Save $4,710 SGD (47%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $10,002 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2235655108. Listed at 13 retailers as of November 1, 2026, with prices from $5,292 to $10,002, a $4,710 spread on the same certified stone. MOH London lists it at $10,002. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.75°
Pavilion angle32.53°
OriginNatural
Grading LabGIA
CertificateGIA 2235655108
Dimensions6.49 × 6.46 × 4.25 mm
L/W Ratio1.00
Girdle conditionThick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.49 mm6.46 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2235655108
Side View
Table 62.0%Crown 36.75°Girdle: STK-THKPavilion 32.53°Culet: NoneDepth 65.8%

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 1
Current: $10,002 SGD|Low: $5,292 SGD|High: $10,793 SGD|Avg: $6,823 SGD|-7.2%
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
November 2, 2026
Retailer 3$5,292 SGD
Retailer 12$5,423 SGD
Retailer 7$5,423 SGD
Retailer 9$5,839 SGD
Retailer 4$6,048 SGD
Retailer 13$6,075 SGD
Retailer 6$6,305 SGD
Retailer 8$6,458 SGD
Retailer 11$6,458 SGD
Retailer 10$6,676 SGD
Retailer 2$7,105 SGD
Retailer 5$9,177 SGD
MOH London$10,002 SGD

37 data points across 13 retailers

13 retailers$5,292 SGD to $10,002 SGD

A
Cheapest Retailer
-
$5,292 SGD
$4,138 USD
A
Retailer 2
-
$5,423 SGD
$4,240 USD
View
A
Retailer 3
-
$5,423 SGD
CA$5,890 CAD
View
A
Retailer 4
-
$5,839 SGD
$4,566 USD
View
A
Retailer 5
-
$6,048 SGD
$4,729 USD
View
A
Retailer 6
-
$6,075 SGD
$4,750 USD
View
A
Retailer 7
-
$6,305 SGD
£3,882 GBP
View
A
Retailer 8
-
$6,458 SGD
$5,050 USD
View
A
Retailer 9
-
$6,458 SGD
$5,050 USD
View
A
Retailer 10
-
$6,676 SGD
$5,220 USD
View
A
Retailer 11
-
$7,105 SGD
€5,291 EUR
View
B+
Retailer 12
-
$9,177 SGD
$7,176 USD
View
Most Expensive
B+
MOH London
722B21398 · Nov 1
$10,002 SGD
£6,158 GBP
View
12 more retailers have this diamond
Prices start from $5,292 SGDSave up to $4,710 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
$5,292 SGD