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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 2457470388

Certificate GIA 2457470388

Diamond specifications and retailer prices

From $6,205 SGD
$4,854 USD
As of October 31, 2026
Save $2,372 SGD (28%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,405 SGD at GemsNY · As of October 8, 2026
View at GemsNY

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2457470388. Listed at 15 retailers as of October 31, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2457470388
Dimensions6.85 × 6.36 × 4.36 mm
L/W Ratio1.08
Top View
6.85 mm6.36 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2457470388
Side View
Table 63.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.6%

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 31
Current: $9,405 SGD|Low: $5,965 SGD|High: $9,405 SGD|Avg: $7,488 SGD|+3.7%
GemsNY
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
November 2, 2026
Retailer 7$6,205 SGD
Retailer 6$6,310 SGD
Retailer 11$6,540 SGD
Retailer 8$6,586 SGD
Retailer 3$6,741 SGD
Retailer 10$7,034 SGD
Retailer 9$7,448 SGD
Retailer 13$7,623 SGD
Retailer 5$7,647 SGD
Retailer 4$8,169 SGD
Retailer 12$8,169 SGD
Retailer 14$8,437 SGD
Retailer 2$8,577 SGD
GemsNY$9,405 SGD

39 data points across 14 retailers

15 retailers$6,205 SGD to $8,577 SGD

A
Cheapest Retailer
-
$6,205 SGD
$4,854 USD
B+
Retailer 2
-
$6,310 SGD
$4,936 USD
View
Retailer 3
-
$6,478 SGD
$5,068 USD
View
Price last confirmed 97 days ago
B+
Retailer 4
-
$6,586 SGD
$5,152 USD
View
Retailer 5
-
$6,741 SGD
$5,273 USD
View
Price last confirmed 26 days ago
B+
Retailer 6
-
$6,810 SGD
CA$7,399 CAD
View
B+
Retailer 7
-
$7,034 SGD
$5,502 USD
View
B
Retailer 8
-
$7,448 SGD
$5,826 USD
View
Retailer 9
-
$7,623 SGD
$5,963 USD
View
Price last confirmed 26 days ago
B
Retailer 10
-
$7,647 SGD
$5,982 USD
View
B
Retailer 11
-
$8,169 SGD
$6,390 USD
View
B
Retailer 12
-
$8,169 SGD
$6,390 USD
View
B
Retailer 13
-
$8,437 SGD
$6,600 USD
View
B
Retailer 14
-
$8,577 SGD
£5,283 GBP
View
Most Expensive
GemsNY
N209508 · Oct 8
$9,405 SGD
$7,357 USD
View
Price last confirmed 25 days ago
14 more retailers have this diamond
Prices start from $6,205 SGDSave up to $2,372 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
$6,205 SGD