CaratHunter
Plans
Cushion|Natural|GIA

1.51ct D SI2 Cushion Natural Diamond

EX • D/SI2 • GIA 6555141851

Certificate GIA 6555141851

Diamond specifications and retailer prices

From $5,317 SGD
$4,159 USD
As of October 30, 2026
Save $4,444 SGD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,761 SGD at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555141851. Listed at 8 retailers as of October 29, 2026, with prices from $5,317 to $9,761, a $4,444 spread on the same certified stone. MOH London lists it at $9,761. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555141851
Dimensions7.82 × 5.90 × 3.95 mm
L/W Ratio1.33
Top View
7.82 mm5.90 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555141851
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 66.9%

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: Oct 30
Current: $9,761 SGD|Low: $4,629 SGD|High: $10,657 SGD|Avg: $6,433 SGD|-8.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7$5,317 SGD
Retailer 3$5,345 SGD
Retailer 8$5,628 SGD
Retailer 5$5,762 SGD
Retailer 6$5,794 SGD
Retailer 2$5,817 SGD
Retailer 4$6,062 SGD
Retailer 9$6,487 SGD
MOH London$9,761 SGD

45 data points across 9 retailers

8 retailers$5,317 SGD to $9,761 SGD

A
Cheapest Retailer
-
$5,317 SGD
$4,159 USD
A
Retailer 2
-
$5,345 SGD
₹398,173 INR
View
A
Retailer 3
-
$5,628 SGD
$4,402 USD
View
Final sale: no returns
A
Retailer 4
-
$5,762 SGD
£3,549 GBP
View
A
Retailer 5
-
$5,794 SGD
$4,532 USD
View
A
Retailer 6
-
$5,817 SGD
A$7,000 AUD
View
A
Retailer 7
-
$6,062 SGD
£3,734 GBP
View
Most Expensive
B+
MOH London
FD5D29FA0 · Oct 29
$9,761 SGD
£6,012 GBP
View
7 more retailers have this diamond
Prices start from $5,317 SGDSave up to $4,444 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
$5,317 SGD