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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 6551664558

Certificate GIA 6551664558

Diamond specifications and retailer prices

From $5,151 SGD
As of November 6, 2026
Save $5,779 SGD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $11,703 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551664558. Listed at 15 retailers as of November 4, 2026, with a 112% 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

1.50
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551664558
Dimensions7.73 × 5.95 × 4.07 mm
L/W Ratio1.30
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural
Top View
7.73 mm5.95 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551664558
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.4%

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: $11,703 SGD|Low: $5,117 SGD|High: $11,784 SGD|Avg: $7,343 SGD|+2.1%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11$5,151 SGD
Retailer 2$5,474 SGD
Retailer 8$6,109 SGD
Retailer 4$6,352 SGD
Retailer 6$6,448 SGD
Retailer 13$6,561 SGD
Retailer 9$6,652 SGD
Retailer 12$6,881 SGD
Retailer 5$7,077 SGD
Retailer 3$7,241 SGD
Retailer 7$7,742 SGD
Retailer 10$10,929 SGD
Queensmith$11,703 SGD

25 data points across 13 retailers

15 retailers$5,151 SGD to $10,929 SGD

A
Cheapest Retailer
-
$5,151 SGD
A
Retailer 2
-
$5,474 SGD
View
A
Retailer 3
-
$6,109 SGD
View
B+
Retailer 4
-
$6,318 SGD
View
B+
Retailer 5
-
$6,352 SGD
View
Final sale: no returns
A
Retailer 6
-
$6,448 SGD
View
Retailer 7
-
$6,561 SGD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$6,652 SGD
View
Retailer 9
-
$6,881 SGD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$7,077 SGD
View
B+
Retailer 11
-
$7,241 SGD
View
B+
Retailer 12
-
$7,420 SGD
View
B+
Retailer 13
-
$7,742 SGD
View
B
Retailer 14
-
$10,929 SGD
View
Most Expensive
Queensmith
6551664558 · Oct 28
$11,703 SGD
£7,190 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $5,151 SGDSave up to $5,779 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
1.50ct Cushion
$5,151 SGD