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0.38ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6551538742

Certificate GIA 6551538742

Diamond specifications and retailer prices

From £185 GBP
$248 USD
As of October 28, 2026
Save £652 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £837 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.38ct natural round diamond

This 0.38ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6551538742. Listed at 8 retailers as of October 28, 2026, with prices from £185 to £837, a £652 spread on the same certified stone. NZ Jewellers lists it at £837. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6551538742
Dimensions4.61 × 4.65 × 2.88 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp
Top View
4.61 mm4.65 mm0.38 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551538742
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.3%

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: Oct 28
Current: £837 GBP|Low: £185 GBP|High: £899 GBP|Avg: £377 GBP|-6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 7£185 GBP
Retailer 6£206 GBP
Retailer 8£249 GBP
Retailer 3£290 GBP
Retailer 4£364 GBP
Retailer 2£381 GBP
Retailer 5£427 GBP
NZ Jewellers£837 GBP

41 data points across 8 retailers

8 retailers£185 GBP to £837 GBP

A
Cheapest Retailer
-
£185 GBP
$248 USD
A
Retailer 2
-
£206 GBP
$276 USD
View
A
Retailer 3
-
£249 GBP
$333 USD
View
B+
Retailer 4
-
£290 GBP
View
B+
Retailer 5
-
£364 GBP
€464 EUR
View
B+
Retailer 6
-
£381 GBP
View
B+
Retailer 7
-
£427 GBP
View
Most Expensive
B
NZ Jewellers
4c299bfd-d5ce-4357-a40f-7a0cd82674bb · Oct 30
£837 GBP
$1,122 USD
View
7 more retailers have this diamond
Prices start from £185 GBPSave up to £652 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 Round
£185 GBP