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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 £141 GBP
As of November 6, 2026
Save £329 GBP (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £471 GBP at MOH London · As of November 7, 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 6, 2026, with prices from £141 to £471, a £329 spread on the same certified stone. MOH London lists it at £471. 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
Colour
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: £471 GBP|Low: £141 GBP|High: £500 GBP|Avg: £301 GBP|-5.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 2£141 GBP
Retailer 6£220 GBP
Retailer 7£236 GBP
Retailer 3£257 GBP
Retailer 5£280 GBP
Retailer 8£321 GBP
Retailer 4£393 GBP
MOH London£471 GBP

42 data points across 8 retailers

8 retailers£141 GBP to £471 GBP

A
Cheapest Retailer
-
£141 GBP
Retailer 2
-
£220 GBP
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£236 GBP
View
B+
Retailer 4
-
£257 GBP
View
B+
Retailer 5
-
£280 GBP
View
B
Retailer 6
-
£321 GBP
View
B
Retailer 7
-
£393 GBP
View
Most Expensive
B
MOH London
A4F8A5134 · Nov 7
£471 GBP
View
7 more retailers have this diamond
Prices start from £141 GBPSave up to £329 GBP

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
£141 GBP