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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6532506605

Certificate GIA 6532506605

Diamond specifications and retailer prices

From $2,873 SGD
$2,247 USD
As of November 1, 2026
Save $3,782 SGD (57%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $6,655 SGD at MOH London · As of October 29, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6532506605. Listed at 23 retailers as of October 29, 2026, with prices from $2,873 to $6,655, a $3,782 spread on the same certified stone. MOH London lists it at $6,655. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle33.9°
OriginNatural
Grading LabGIA
CertificateGIA 6532506605
Dimensions6.53 × 6.32 × 4.31 mm
L/W Ratio1.03
Top View
6.53 mm6.32 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532506605
Side View
Table 65.0%Crown 38.9°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 68.2%

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: $6,655 SGD|Low: $2,873 SGD|High: $6,765 SGD|Avg: $3,913 SGD|-1.6%
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
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$2,873 SGD
Retailer 18$2,995 SGD
Retailer 14$3,132 SGD
Retailer 16$3,149 SGD
Retailer 11$3,211 SGD
Retailer 10$3,310 SGD
Retailer 7$3,319 SGD
Retailer 9$3,516 SGD
Retailer 21$3,580 SGD
Retailer 5$3,586 SGD
Retailer 4$3,618 SGD
Retailer 2$3,808 SGD
Retailer 3$3,810 SGD
Retailer 19$3,810 SGD
Retailer 20$3,937 SGD
Retailer 15$4,136 SGD
Retailer 6$4,595 SGD
Retailer 13$4,632 SGD
Retailer 8$4,693 SGD
Retailer 17$4,865 SGD
MOH London$6,655 SGD

22 data points across 21 retailers

23 retailers$2,873 SGD to $6,655 SGD

A
Cheapest Retailer
-
$2,873 SGD
$2,247 USD
A
Retailer 2
-
$2,995 SGD
HK$18,300 HKD
View
A
Retailer 3
-
$3,132 SGD
$2,450 USD
View
A
Retailer 4
-
$3,149 SGD
$2,463 USD
View
B+
Retailer 5
-
$3,211 SGD
$2,512 USD
View
B+
Retailer 6
-
$3,310 SGD
$2,589 USD
View
Final sale: no returns
A
Retailer 7
-
$3,319 SGD
$2,596 USD
View
A
Retailer 8
-
$3,320 SGD
A$3,995 AUD
View
B+
Retailer 9
-
$3,516 SGD
$2,750 USD
View
A
Retailer 10
-
$3,580 SGD
$2,800 USD
View
B+
Retailer 11
-
$3,586 SGD
$2,805 USD
View
A
Retailer 12
-
$3,618 SGD
$2,830 USD
View
B+
Retailer 13
-
$3,808 SGD
£2,345 GBP
View
A
Retailer 14
-
$3,810 SGD
$2,980 USD
View
A
Retailer 15
-
$3,810 SGD
$2,980 USD
View
B+
Retailer 16
-
$3,937 SGD
$3,080 USD
View
Retailer 17
-
$4,082 SGD
A$4,912 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
$4,136 SGD
£2,547 GBP
View
Retailer 19
-
$4,595 SGD
$3,594 USD
View
Price last confirmed 10 days ago
B+
Retailer 20
-
$4,632 SGD
€3,451 EUR
View
B+
Retailer 21
-
$4,693 SGD
$3,671 USD
View
B+
Retailer 22
-
$4,865 SGD
ZAR 61,480 ZAR
View
Most Expensive
B
MOH London
7C8791961 · Oct 29
$6,655 SGD
£4,099 GBP
View
22 more retailers have this diamond
Prices start from $2,873 SGDSave up to $3,782 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
$2,873 SGD