CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1232947260

Certificate GIA 1232947260

Diamond specifications and retailer prices

From $4,273 SGD
HK$26,100 HKD
As of November 1, 2026
Save $4,994 SGD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $9,266 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 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 1232947260. Listed at 9 retailers as of November 1, 2026, with prices from $4,273 to $9,266, a $4,994 spread on the same certified stone. MOH London lists it at $9,266. 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
SymmetryExcellent
FluorescenceNone
Pavilion angle35.31°
OriginNatural
Grading LabGIA
CertificateGIA 1232947260
Dimensions7.81 × 5.96 × 4.04 mm
L/W Ratio1.31
Key to symbols
Feather, Needle, Pinpoint, Cloud
Top View
7.81 mm5.96 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232947260
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 35.31°Culet: NoneDepth 67.8%

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 1
Current: $9,266 SGD|Low: $4,273 SGD|High: $10,176 SGD|Avg: $6,240 SGD|-8.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$4,273 SGD
Retailer 6$5,203 SGD
Retailer 2$5,520 SGD
Retailer 8$5,582 SGD
Retailer 4$6,042 SGD
Retailer 7$6,278 SGD
Retailer 3$6,665 SGD
MOH London$9,266 SGD

33 data points across 8 retailers

9 retailers$4,273 SGD to $9,266 SGD

A
Cheapest Retailer
-
$4,273 SGD
HK$26,100 HKD
A
Retailer 2
-
$5,203 SGD
$4,068 USD
View
A
Retailer 3
-
$5,520 SGD
£3,399 GBP
View
A
Retailer 4
-
$5,582 SGD
View
B+
Retailer 5
-
$6,042 SGD
€4,499 EUR
View
B+
Retailer 6
-
$6,278 SGD
$4,909 USD
View
B+
Retailer 7
-
$6,358 SGD
A$7,648 AUD
View
B+
Retailer 8
-
$6,665 SGD
€4,963 EUR
View
Most Expensive
B
MOH London
8D2B6642B · Nov 1
$9,266 SGD
£5,705 GBP
View
8 more retailers have this diamond
Prices start from $4,273 SGDSave up to $4,994 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
$4,273 SGD