Round|Natural|GIA

0.38ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6555139741

Certificate GIA 6555139741

Diamond specifications and retailer prices

From £391 GBP
$525 USD
As of November 2, 2026
Save £536 GBP (58%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,374 GBP at NZ Jewellers · As of October 20, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555139741. Listed at 18 retailers as of October 27, 2026, with a 137% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555139741
Dimensions4.72 × 4.74 × 2.83 mm
L/W Ratio1.00
Top View
4.72 mm4.74 mm0.38 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555139741
Side View
Table 59.0%Crown 33°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 59.8%

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: Nov 2
Current: £1,374 GBP|Low: £261 GBP|High: £1,374 GBP|Avg: £489 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 8£261 GBP
Retailer 10£272 GBP
Retailer 9£275 GBP
Retailer 7£320 GBP
Retailer 20£325 GBP
Retailer 5£349 GBP
Retailer 12£357 GBP
Retailer 3£375 GBP
Retailer 6£377 GBP
Retailer 11£412 GBP
Retailer 19£412 GBP
Retailer 13£445 GBP
Retailer 18£459 GBP
Retailer 4£534 GBP
Retailer 14£538 GBP
Retailer 15£556 GBP
Retailer 2£726 GBP
Retailer 16£833 GBP
Retailer 17£927 GBP
NZ Jewellers£1,374 GBP

29 data points across 20 retailers

18 retailers£391 GBP to £927 GBP

Retailer 1
-
£325 GBP
$436 USD
Price last confirmed 24 days ago
Retailer 2
-
£325 GBP
$436 USD
View
Price last confirmed 11 days ago
Retailer 3
-
£349 GBP
$469 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£349 GBP
$469 USD
View
Price last confirmed 11 days ago
Retailer 5
-
£375 GBP
$503 USD
View
Price last confirmed 24 days ago
Retailer 6
-
£375 GBP
$503 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
£391 GBP
$525 USD
View
B+
Retailer 8
-
£412 GBP
$553 USD
View
B+
Retailer 9
-
£445 GBP
View
B+
Retailer 10
-
£459 GBP
$616 USD
View
B+
Retailer 11
-
£534 GBP
$717 USD
View
B+
Retailer 12
-
£538 GBP
€687 EUR
View
B+
Retailer 13
-
£556 GBP
ZAR 12,053 ZAR
View
B
Retailer 14
-
£726 GBP
View
B
Retailer 15
-
£833 GBP
View
B
Retailer 16
-
£927 GBP
View
Retailer 17
-
£1,374 GBP
$1,844 USD
View
Price under review
Most Expensive
NZ Jewellers
556dc85a-f280-4586-8618-83e17499eb43 · Oct 20
£1,374 GBP
$1,844 USD
View
Price under review
17 more retailers have this diamond
Prices start from £391 GBPSave up to £536 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
£391 GBP