Round|Natural|IGI

0.38ct J SI2 Round Natural Diamond

GD • J/SI2 • IGI 839657510

Shape and cutting style on the report: Round brilliant

Certificate IGI 839657510

Diamond specifications and retailer prices

From £138 GBP
$185 USD
As of October 28, 2026
Save £487 GBP (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £625 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 standard cut grade and certified by IGI 839657510. Listed at 11 retailers as of October 28, 2026, with prices from £138 to £625, a £487 spread on the same certified stone. NZ Jewellers lists it at £625. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.38
Carat
J
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.1°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 839657510
Dimensions4.73 × 4.77 × 2.86 mm
L/W Ratio1.01
Culet sizeNone
Top View
4.73 mm4.77 mm0.38 ctJ / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI 839657510
Side View
Table 55.0%Crown 34.1°Girdle: ETN-THNPavilion 41.1°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £625 GBP|Low: £138 GBP|High: £625 GBP|Avg: £253 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6£138 GBP
Retailer 11£146 GBP
Retailer 9£149 GBP
Retailer 10£154 GBP
Retailer 8£186 GBP
Retailer 7£235 GBP
Retailer 3£278 GBP
Retailer 2£285 GBP
Retailer 4£291 GBP
Retailer 5£320 GBP
NZ Jewellers£625 GBP

15 data points across 11 retailers

11 retailers£138 GBP to £625 GBP

B+
Cheapest Retailer
-
£138 GBP
$185 USD
Retailer 2
-
£146 GBP
$195 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
£149 GBP
$199 USD
View
B+
Retailer 4
-
£154 GBP
$206 USD
View
B+
Retailer 5
-
£186 GBP
$249 USD
View
B+
Retailer 6
-
£235 GBP
$315 USD
View
B+
Retailer 7
-
£278 GBP
$373 USD
View
B+
Retailer 8
-
£285 GBP
View
B+
Retailer 9
-
£291 GBP
€371 EUR
View
B
Retailer 10
-
£320 GBP
View
Most Expensive
C
NZ Jewellers
90156b55-1050-4454-91fe-703be4dc63cc · Oct 30
£625 GBP
$838 USD
View
10 more retailers have this diamond
Prices start from £138 GBPSave up to £487 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.

B+
0.38ct Round
£138 GBP