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Cushion|Natural|GIA

1.50ct D SI2 Cushion Natural Diamond

GD • D/SI2 • GIA 6551490082

Certificate GIA 6551490082

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)
14 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 6551490082. Listed at 14 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551490082
Dimensions8.16 × 5.42 × 3.83 mm
L/W Ratio1.51
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle
Top View
8.16 mm5.42 mm1.50 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551490082
Side View
Table 60.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 70.6%

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: $11,703 SGD|Low: $5,117 SGD|High: $11,784 SGD|Avg: $7,340 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
November 6, 2026
Retailer 9$5,151 SGD
Retailer 2$5,474 SGD
Retailer 6$6,109 SGD
Retailer 11$6,352 SGD
Retailer 10$6,561 SGD
Retailer 7$6,652 SGD
Retailer 12$6,895 SGD
Retailer 4$6,927 SGD
Retailer 3$7,077 SGD
Retailer 5$7,742 SGD
Retailer 8$10,929 SGD
Queensmith$11,703 SGD

32 data points across 12 retailers

14 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
Retailer 6
-
$6,561 SGD
View
Price last confirmed 10 days ago
A
Retailer 7
-
$6,652 SGD
View
B+
Retailer 8
-
$6,895 SGD
View
Retailer 9
-
$6,927 SGD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$7,028 SGD
View
B+
Retailer 11
-
$7,077 SGD
View
B+
Retailer 12
-
$7,742 SGD
View
B
Retailer 13
-
$10,929 SGD
View
Most Expensive
Queensmith
6551490082 · Oct 28
$11,703 SGD
£7,190 GBP
View
Price last confirmed 9 days ago
13 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