Cushion|Natural|GIA

1.50ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 5403156383

Certificate GIA 5403156383

Diamond specifications and retailer prices

From $2,948 USD
As of October 31, 2026
Save $3,469 USD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $6,417 USD at MOH London · As of November 1, 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 J 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 5403156383. Listed at 20 retailers as of October 31, 2026, with prices from $2,948 to $6,417, a $3,469 spread on the same certified stone. MOH London lists it at $6,417. 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
J
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5403156383
Dimensions6.67 × 6.10 × 4.26 mm
L/W Ratio1.09
Top View
6.67 mm6.10 mm1.50 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 5403156383
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.8%

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: Oct 31
Current: $6,417 USD|Low: $2,948 USD|High: $6,486 USD|Avg: $3,926 USD|-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
November 2, 2026
Retailer 9$2,948 USD
Retailer 11$3,015 USD
Retailer 10$3,182 USD
Retailer 7$3,195 USD
Retailer 12$3,209 USD
Retailer 4$3,476 USD
Retailer 2$3,692 USD
Retailer 6$3,925 USD
Retailer 3$4,110 USD
Retailer 5$4,491 USD
Retailer 8$4,717 USD
MOH London$6,417 USD

35 data points across 12 retailers

20 retailers$2,948 USD to $6,417 USD

A
Cheapest Retailer
-
$2,948 USD
B+
Retailer 2
-
$3,015 USD
View
B+
Retailer 3
-
$3,086 USD
View
B+
Retailer 4
-
$3,182 USD
View
B+
Retailer 5
-
$3,195 USD
A$4,915 AUD
View
B+
Retailer 6
-
$3,209 USD
View
Final sale: no returns
B+
Retailer 7
-
$3,350 USD
View
B+
Retailer 8
-
$3,450 USD
View
B+
Retailer 9
-
$3,485 USD
View
B+
Retailer 10
-
$3,692 USD
£2,907 GBP
View
B+
Retailer 11
-
$3,722 USD
View
B
Retailer 12
-
$3,925 USD
£3,091 GBP
View
B
Retailer 13
-
$3,940 USD
View
B
Retailer 14
-
$3,940 USD
View
B
Retailer 15
-
$4,070 USD
View
Retailer 16
-
$4,110 USD
A$6,324 AUD
View
Price last confirmed 24 days ago
Retailer 17
-
$4,344 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$4,491 USD
€4,277 EUR
View
B
Retailer 19
-
$4,717 USD
ZAR 76,201 ZAR
View
Most Expensive
C
MOH London
788435C68 · Nov 1
$6,417 USD
£5,053 GBP
View
19 more retailers have this diamond
Prices start from $2,948 USDSave up to $3,469 USD

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
$2,948 USD