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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 6555305528

Certificate GIA 6555305528

Diamond specifications and retailer prices

From $5,205 SGD
$4,070 USD
As of November 1, 2026
Save $5,831 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,036 SGD at MOH London · As of November 2, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6555305528. Listed at 20 retailers as of November 1, 2026, with prices from $5,205 to $11,036, a $5,831 spread on the same certified stone. MOH London lists it at $11,036. 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
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555305528
Dimensions7.40 × 5.68 × 4.14 mm
L/W Ratio1.30
Girdle conditionFaceted
Top View
7.40 mm5.68 mm1.51 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555305528
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 72.8%

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 1
Current: $11,036 SGD|Low: $5,146 SGD|High: $11,160 SGD|Avg: $6,811 SGD|-1.1%
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 3, 2026
Retailer 4$5,205 SGD
Retailer 14$5,206 SGD
Retailer 3$5,488 SGD
Retailer 9$5,772 SGD
Retailer 18$5,793 SGD
Retailer 6$5,847 SGD
Retailer 11$5,860 SGD
Retailer 10$5,947 SGD
Retailer 12$6,123 SGD
Retailer 17$6,209 SGD
Retailer 13$6,228 SGD
Retailer 15$6,575 SGD
Retailer 2$6,761 SGD
Retailer 7$6,787 SGD
Retailer 16$7,840 SGD
Retailer 5$8,567 SGD
Retailer 8$10,825 SGD
MOH London$11,036 SGD

20 data points across 18 retailers

20 retailers$5,205 SGD to $11,036 SGD

A
Cheapest Retailer
-
$5,205 SGD
$4,070 USD
A
Retailer 2
-
$5,206 SGD
HK$31,800 HKD
View
B+
Retailer 3
-
$5,488 SGD
$4,291 USD
View
B+
Retailer 4
-
$5,772 SGD
$4,513 USD
View
B+
Retailer 5
-
$5,793 SGD
$4,530 USD
View
Final sale: no returns
B+
Retailer 6
-
$5,847 SGD
$4,572 USD
View
B+
Retailer 7
-
$5,860 SGD
€4,364 EUR
View
B+
Retailer 8
-
$5,947 SGD
$4,650 USD
View
B+
Retailer 9
-
$6,123 SGD
A$7,366 AUD
View
B+
Retailer 10
-
$6,209 SGD
$4,855 USD
View
B+
Retailer 11
-
$6,228 SGD
$4,870 USD
View
B+
Retailer 12
-
$6,575 SGD
£4,048 GBP
View
B
Retailer 13
-
$6,757 SGD
A$8,128 AUD
View
B+
Retailer 14
-
$6,761 SGD
£4,163 GBP
View
B
Retailer 15
-
$6,787 SGD
$5,307 USD
View
Retailer 16
-
$7,064 SGD
A$8,498 AUD
View
Price last confirmed 24 days ago
B
Retailer 17
-
$7,840 SGD
€5,838 EUR
View
B
Retailer 18
-
$8,567 SGD
ZAR 108,223 ZAR
View
Retailer 19
-
$10,825 SGD
$8,464 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
5528D845F · Nov 2
$11,036 SGD
£6,795 GBP
View
19 more retailers have this diamond
Prices start from $5,205 SGDSave up to $5,831 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
$5,205 SGD