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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

GD • G/SI2 • GIA 2556496790

Certificate GIA 2556496790

Diamond specifications and retailer prices

From $4,905 SGD
As of November 6, 2026
Save $5,528 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,426 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556496790. Listed at 15 retailers as of November 2, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
G
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556496790
Dimensions7.64 × 5.69 × 3.85 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Cavity, Needle
Top View
7.64 mm5.69 mm1.51 ctG / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556496790
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.6%

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: Nov 6
Current: $11,426 SGD|Low: $4,905 SGD|High: $11,475 SGD|Avg: $7,315 SGD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$4,905 SGD
Retailer 2$5,197 SGD
Retailer 6$5,775 SGD
Retailer 3$6,312 SGD
Retailer 5$6,450 SGD
Retailer 9$6,550 SGD
Retailer 4$7,372 SGD
Retailer 7$10,432 SGD
Queensmith$11,426 SGD

26 data points across 9 retailers

15 retailers$4,905 SGD to $10,432 SGD

A
Cheapest Retailer
-
$4,905 SGD
A
Retailer 2
-
$5,197 SGD
View
B+
Retailer 3
-
$5,775 SGD
View
B+
Retailer 4
-
$5,971 SGD
View
B+
Retailer 5
-
$6,045 SGD
View
Final sale: no returns
Retailer 6
-
$6,244 SGD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$6,312 SGD
View
B+
Retailer 8
-
$6,450 SGD
View
Retailer 9
-
$6,550 SGD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$6,662 SGD
View
B+
Retailer 11
-
$6,745 SGD
View
B+
Retailer 12
-
$6,908 SGD
View
B+
Retailer 13
-
$7,372 SGD
View
B
Retailer 14
-
$10,432 SGD
View
Most Expensive
Queensmith
2556496790 · Oct 28
$11,426 SGD
£7,020 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $4,905 SGDSave up to $5,528 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
$4,905 SGD