Cushion|Natural|GIA

0.38ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6555030407

Certificate GIA 6555030407

Diamond specifications and retailer prices

From £279 GBP
₹35,694 INR
As of November 2, 2026
Save £311 GBP (53%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £880 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 0.38ct natural cushion diamond

This 0.38ct natural cushion sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555030407. Listed at 9 retailers as of October 30, 2026, with a 111% 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

0.38
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555030407
Dimensions4.19 × 4.16 × 2.80 mm
L/W Ratio1.01
Girdle conditionThick
Top View
4.19 mm4.16 mm0.38 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555030407
Side View
Table 65.0%CrownGirdle: MediumPavilionCulet: 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: £880 GBP|Low: £279 GBP|High: £909 GBP|Avg: £548 GBP|-3.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2£279 GBP
Retailer 3£477 GBP
Retailer 7£478 GBP
Retailer 6£522 GBP
Retailer 9£534 GBP
Retailer 4£570 GBP
Retailer 8£572 GBP
Retailer 5£590 GBP
MOH London£880 GBP

37 data points across 9 retailers

9 retailers£279 GBP to £590 GBP

A
Cheapest Retailer
-
£279 GBP
₹35,694 INR
B+
Retailer 2
-
£477 GBP
View
B+
Retailer 3
-
£478 GBP
$642 USD
View
B+
Retailer 4
-
£522 GBP
View
B+
Retailer 5
-
£534 GBP
$716 USD
View
B+
Retailer 6
-
£570 GBP
€728 EUR
View
Retailer 7
-
£572 GBP
A$1,182 AUD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
£590 GBP
ZAR 12,793 ZAR
View
Most Expensive
MOH London
1AB000586 · Oct 26
£880 GBP
View
Price last confirmed 7 days ago
8 more retailers have this diamond
Prices start from £279 GBPSave up to £311 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
0.38ct Cushion
£279 GBP