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Cushion|Natural|GIA

0.50ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 1529619451

Certificate GIA 1529619451

Diamond specifications and retailer prices

From £248 GBP
As of November 6, 2026
Save £243 GBP (49%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £751 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.5ct natural cushion diamond

This 0.5ct natural cushion sits in the half to three-quarter carat band, graded I 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 1529619451. Listed at 6 retailers as of November 6, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1529619451
Dimensions4.71 × 4.62 × 3.06 mm
L/W Ratio1.02
Girdle conditionFaceted
Key to symbols
Twinning Wisp
Top View
4.71 mm4.62 mm0.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529619451
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 66.3%

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 6
Current: £751 GBP|Low: £248 GBP|High: £759 GBP|Avg: £460 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£248 GBP
Retailer 3£399 GBP
Retailer 6£422 GBP
Retailer 5£441 GBP
Retailer 2£491 GBP
MOH London£751 GBP

42 data points across 6 retailers

6 retailers£248 GBP to £491 GBP

A
Cheapest Retailer
-
£248 GBP
B+
Retailer 2
-
£399 GBP
View
B+
Retailer 3
-
£422 GBP
View
B+
Retailer 4
-
£441 GBP
View
B+
Retailer 5
-
£491 GBP
View
Most Expensive
MOH London
D155EA19D · Oct 26
£751 GBP
View
Price last confirmed 11 days ago
5 more retailers have this diamond
Prices start from £248 GBPSave up to £243 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
0.50ct Cushion
£248 GBP