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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 5242081367

Certificate GIA 5242081367

Diamond specifications and retailer prices

From $3,503 SGD
HK$21,400 HKD
As of November 2, 2026
Save $4,840 SGD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,344 SGD at MOH London · As of November 2, 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 I 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 5242081367. Listed at 22 retailers as of November 2, 2026, with prices from $3,503 to $8,344, a $4,840 spread on the same certified stone. MOH London lists it at $8,344. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242081367
Dimensions6.70 × 6.32 × 4.35 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.70 mm6.32 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242081367
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.8%

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 2
Current: $8,344 SGD|Low: $3,274 SGD|High: $8,344 SGD|Avg: $4,791 SGD|+3.1%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 13$3,503 SGD
Retailer 10$3,575 SGD
Retailer 6$3,733 SGD
Retailer 8$3,761 SGD
Retailer 21$4,011 SGD
Retailer 4$4,012 SGD
Retailer 5$4,013 SGD
Retailer 7$4,118 SGD
Retailer 18$4,172 SGD
Retailer 17$4,244 SGD
Retailer 20$4,323 SGD
Retailer 19$4,491 SGD
Retailer 12$4,586 SGD
Retailer 15$4,734 SGD
Retailer 11$4,802 SGD
Retailer 2$5,126 SGD
Retailer 14$5,167 SGD
Retailer 16$5,625 SGD
Retailer 3$6,032 SGD
Retailer 9$7,256 SGD
MOH London$8,344 SGD

21 data points across 21 retailers

22 retailers$3,503 SGD to $8,344 SGD

A
Cheapest Retailer
-
$3,503 SGD
HK$21,400 HKD
A
Retailer 2
-
$3,575 SGD
$2,795 USD
View
A
Retailer 3
-
$3,733 SGD
$2,919 USD
View
A
Retailer 4
-
$3,761 SGD
$2,941 USD
View
A
Retailer 5
-
$4,011 SGD
€2,987 EUR
View
A
Retailer 6
-
$4,012 SGD
$3,137 USD
View
A
Retailer 7
-
$4,013 SGD
$3,138 USD
View
A
Retailer 8
-
$4,118 SGD
$3,220 USD
View
A
Retailer 9
-
$4,172 SGD
$3,262 USD
View
Final sale: no returns
A
Retailer 10
-
$4,244 SGD
$3,319 USD
View
A
Retailer 11
-
$4,323 SGD
$3,380 USD
View
A
Retailer 12
-
$4,491 SGD
£2,765 GBP
View
Retailer 13
-
$4,586 SGD
View
Price last confirmed 14 days ago
Retailer 14
-
$4,724 SGD
€3,518 EUR
View
Price last confirmed 14 days ago
A
Retailer 15
-
$4,734 SGD
£2,915 GBP
View
A
Retailer 16
-
$5,126 SGD
$4,008 USD
View
Retailer 17
-
$5,167 SGD
A$6,216 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$5,625 SGD
€4,189 EUR
View
B+
Retailer 19
-
$6,032 SGD
ZAR 76,198 ZAR
View
Retailer 20
-
$7,078 SGD
$5,534 USD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
$7,256 SGD
$5,674 USD
View
Most Expensive
B
MOH London
83C7A565F · Nov 2
$8,344 SGD
£5,137 GBP
View
21 more retailers have this diamond
Prices start from $3,503 SGDSave up to $4,840 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
$3,503 SGD