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Cushion|Natural|GIA

0.30ct J SI1 Cushion Natural Diamond

GD • J/SI1 • GIA 1525418159

Certificate GIA 1525418159

Diamond specifications and retailer prices

From $236 SGD
₹17,563 INR
As of November 2, 2026
Save $547 SGD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $783 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.3ct natural cushion diamond

This 0.3ct natural cushion sits in the sub-half-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 1525418159. Listed at 11 retailers as of November 1, 2026, with prices from $236 to $783, a $547 spread on the same certified stone. MOH London lists it at $783. 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

0.30
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1525418159
Dimensions3.82 × 3.81 × 2.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
3.82 mm3.81 mm0.30 ctJ / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1525418159
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.3%

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 2
Current: $783 SGD|Low: $235 SGD|High: $792 SGD|Avg: $481 SGD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$236 SGD
Retailer 9$358 SGD
Retailer 7$364 SGD
Retailer 10$391 SGD
Retailer 4$428 SGD
Retailer 8$506 SGD
Retailer 5$525 SGD
Retailer 11$539 SGD
Retailer 3$561 SGD
Retailer 6$656 SGD
MOH London$783 SGD

36 data points across 11 retailers

11 retailers$236 SGD to $783 SGD

A
Cheapest Retailer
-
$236 SGD
₹17,563 INR
B+
Retailer 2
-
$358 SGD
$280 USD
View
B+
Retailer 3
-
$364 SGD
$285 USD
View
B+
Retailer 4
-
$391 SGD
$306 USD
View
B+
Retailer 5
-
$428 SGD
£264 GBP
View
B
Retailer 6
-
$506 SGD
$395 USD
View
B
Retailer 7
-
$525 SGD
ZAR 6,635 ZAR
View
B
Retailer 8
-
$539 SGD
$422 USD
View
Retailer 9
-
$561 SGD
A$675 AUD
View
Price last confirmed 29 days ago
B
Retailer 10
-
$656 SGD
€489 EUR
View
Most Expensive
C
MOH London
E978414B7 · Nov 1
$783 SGD
£482 GBP
View
10 more retailers have this diamond
Prices start from $236 SGDSave up to $547 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
0.30ct Cushion
$236 SGD