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Cushion|Natural|GIA

0.30ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 1557421533

Certificate GIA 1557421533

Diamond specifications and retailer prices

From $189 USD
As of November 6, 2026
Save $443 USD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $632 USD at MOH London · As of November 4, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557421533. Listed at 8 retailers as of November 4, 2026, with prices from $189 to $632, a $443 spread on the same certified stone. MOH London lists it at $632. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.30
Carat
H
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557421533
Dimensions3.77 × 3.76 × 2.58 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal
Top View
3.77 mm3.76 mm0.30 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557421533
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.7%

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 6
Current: $632 USD|Low: $189 USD|High: $669 USD|Avg: $404 USD|-5.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 2$189 USD
Retailer 6$295 USD
Retailer 7$316 USD
Retailer 3$344 USD
Retailer 5$375 USD
Retailer 8$430 USD
Retailer 4$526 USD
MOH London$632 USD

41 data points across 8 retailers

8 retailers$189 USD to $632 USD

A
Cheapest Retailer
-
$189 USD
Retailer 2
-
$295 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$316 USD
View
B+
Retailer 4
-
$344 USD
View
B+
Retailer 5
-
$375 USD
View
B
Retailer 6
-
$430 USD
View
B
Retailer 7
-
$526 USD
View
Most Expensive
B
MOH London
A4F8A5134 · Nov 4
$632 USD
£498 GBP
View
7 more retailers have this diamond
Prices start from $189 USDSave up to $443 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
0.30ct Cushion
$189 USD