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Cushion|Natural|GIA

1.51ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2225586805

Certificate GIA 2225586805

Diamond specifications and retailer prices

From $12,729 SGD
$9,957 USD
As of November 1, 2026
Save $8,717 SGD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,446 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 D 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 2225586805. Listed at 14 retailers as of November 1, 2026, with prices from $12,729 to $21,446, a $8,717 spread on the same certified stone. MOH London lists it at $21,446. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2225586805
Dimensions7.18 × 6.08 × 4.16 mm
L/W Ratio1.18
Culet sizeNone
Top View
7.18 mm6.08 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225586805
Side View
Table 58.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $21,446 SGD|Low: $12,196 SGD|High: $21,704 SGD|Avg: $16,375 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6$12,196 SGD
Retailer 7$13,733 SGD
Retailer 2$14,842 SGD
Retailer 5$14,922 SGD
Retailer 4$16,476 SGD
Retailer 3$20,174 SGD
MOH London$21,446 SGD

44 data points across 7 retailers

14 retailers$12,729 SGD to $21,446 SGD

Retailer 1
-
$12,196 SGD
$9,540 USD
Price last confirmed 11 days ago
B
Retailer 2
-
$12,729 SGD
$9,957 USD
View
B
Retailer 3
-
$12,741 SGD
$9,966 USD
View
B
Retailer 4
-
$13,129 SGD
CA$14,263 CAD
View
B
Retailer 5
-
$13,557 SGD
$10,605 USD
View
B
Retailer 6
-
$13,733 SGD
$10,742 USD
View
B
Retailer 7
-
$13,846 SGD
$10,831 USD
View
B
Retailer 8
-
$14,842 SGD
£9,142 GBP
View
Retailer 9
-
$14,922 SGD
A$17,958 AUD
View
Price last confirmed 9 days ago
B
Retailer 10
-
$15,870 SGD
$12,414 USD
View
B
Retailer 11
-
$16,476 SGD
€12,274 EUR
View
Retailer 12
-
$18,066 SGD
$14,132 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$20,174 SGD
ZAR 254,937 ZAR
View
Most Expensive
B
MOH London
7E276AAAE · Nov 1
$21,446 SGD
£13,209 GBP
View
13 more retailers have this diamond
Prices start from $12,729 SGDSave up to $8,717 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
1.51ct Cushion
$12,729 SGD