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Cushion|Natural|GIA

0.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6325044554

Certificate GIA 6325044554

Diamond specifications and retailer prices

From £286 GBP
HK$3,000 HKD
As of November 1, 2026
Save £392 GBP (58%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £679 GBP at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6325044554. Listed at 5 retailers as of November 1, 2026, with prices from £286 to £679, a £392 spread on the same certified stone. MOH London lists it at £679. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6325044554
Dimensions4.51 × 4.38 × 2.96 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
4.51 mm4.38 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6325044554
Side View
Table 61.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 67.7%

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 1
Current: £679 GBP|Low: £286 GBP|High: £686 GBP|Avg: £462 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5£286 GBP
Retailer 3£384 GBP
Retailer 4£470 GBP
Retailer 2£477 GBP
MOH London£679 GBP

46 data points across 5 retailers

5 retailers£286 GBP to £679 GBP

A
Cheapest Retailer
-
£286 GBP
HK$3,000 HKD
B+
Retailer 2
-
£384 GBP
View
Retailer 3
-
£470 GBP
A$971 AUD
View
Price last confirmed 28 days ago
B+
Retailer 4
-
£477 GBP
€610 EUR
View
Most Expensive
B
MOH London
463C49F91 · Nov 1
£679 GBP
View
4 more retailers have this diamond
Prices start from £286 GBPSave up to £392 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
£286 GBP