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Cushion|Natural|GIA

1.50ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6551393833

Certificate GIA 6551393833

Diamond specifications and retailer prices

From $5,446 SGD
As of November 6, 2026
Save $6,161 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,607 SGD at MOH London · As of November 7, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551393833. Listed at 20 retailers as of November 6, 2026, with prices from $5,446 to $11,607, a $6,161 spread on the same certified stone. MOH London lists it at $11,607. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551393833
Dimensions7.55 × 6.01 × 4.13 mm
L/W Ratio1.26
Girdle conditionFaceted
Top View
7.55 mm6.01 mm1.50 ctF / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551393833
Side View
Table 67.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 68.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,607 SGD|Low: $5,363 SGD|High: $11,723 SGD|Avg: $7,238 SGD|+4.0%
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 7, 2026
Retailer 7$5,446 SGD
Retailer 10$5,608 SGD
Retailer 17$5,830 SGD
Retailer 9$6,127 SGD
Retailer 16$6,138 SGD
Retailer 11$6,185 SGD
Retailer 15$6,229 SGD
Retailer 3$6,235 SGD
Retailer 5$6,472 SGD
Retailer 8$6,472 SGD
Retailer 4$6,485 SGD
Retailer 2$6,782 SGD
Retailer 12$6,818 SGD
Retailer 6$7,026 SGD
Retailer 13$8,245 SGD
Retailer 14$8,939 SGD
Retailer 18$11,419 SGD
MOH London$11,607 SGD

20 data points across 18 retailers

20 retailers$5,446 SGD to $11,607 SGD

A
Cheapest Retailer
-
$5,446 SGD
A
Retailer 2
-
$5,608 SGD
View
A
Retailer 3
-
$5,830 SGD
View
A
Retailer 4
-
$6,127 SGD
View
Final sale: no returns
A
Retailer 5
-
$6,138 SGD
View
A
Retailer 6
-
$6,185 SGD
View
A
Retailer 7
-
$6,229 SGD
View
A
Retailer 8
-
$6,235 SGD
View
A
Retailer 9
-
$6,472 SGD
View
A
Retailer 10
-
$6,472 SGD
View
A
Retailer 11
-
$6,485 SGD
View
A
Retailer 12
-
$6,782 SGD
View
B+
Retailer 13
-
$6,818 SGD
View
B+
Retailer 14
-
$7,026 SGD
View
B+
Retailer 15
-
$7,578 SGD
View
Retailer 16
-
$7,752 SGD
View
Price last confirmed 34 days ago
B+
Retailer 17
-
$8,245 SGD
View
B+
Retailer 18
-
$8,939 SGD
View
B
Retailer 19
-
$11,419 SGD
View
Most Expensive
B
MOH London
0B971148A · Nov 7
$11,607 SGD
£7,131 GBP
View
19 more retailers have this diamond
Prices start from $5,446 SGDSave up to $6,161 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
$5,446 SGD