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Round|Natural|GIA

3.03ct J SI1 Round Natural Diamond

VG • J/SI1 • GIA 6422843308

Certificate GIA 6422843308

Diamond specifications and retailer prices

From £20,461 GBP
$27,415 USD
As of November 1, 2026
Save £16,338 GBP (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £36,799 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.03ct natural round diamond

This 3.03ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 6422843308. Listed at 15 retailers as of November 1, 2026, with prices from £20,461 to £36,799, a £16,338 spread on the same certified stone. MOH London lists it at £36,799. 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

3.03
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6422843308
Dimensions9.17 × 9.12 × 5.76 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
9.17 mm9.12 mm3.03 ctJ / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6422843308
Side View
Table 58.0%Crown 37.5°Girdle: THN-STKPavilion 40.8°Culet: Very SmallDepth 63.0%

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 1
Current: £36,799 GBP|Low: £19,635 GBP|High: £37,242 GBP|Avg: £26,646 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£20,461 GBP
Retailer 6£21,599 GBP
Retailer 7£23,531 GBP
Retailer 2£23,544 GBP
Retailer 3£28,463 GBP
Retailer 4£30,545 GBP
MOH London£36,799 GBP

40 data points across 7 retailers

15 retailers£20,461 GBP to £36,799 GBP

B+
Cheapest Retailer
-
£20,461 GBP
$27,415 USD
B
Retailer 2
-
£21,452 GBP
$28,743 USD
View
B
Retailer 3
-
£21,599 GBP
$28,940 USD
View
Final sale: no returns
B
Retailer 4
-
£22,894 GBP
$30,675 USD
View
Retailer 5
-
£23,531 GBP
A$48,505 AUD
View
Price last confirmed 29 days ago
B
Retailer 6
-
£23,544 GBP
View
B
Retailer 7
-
£23,562 GBP
$31,571 USD
View
B
Retailer 8
-
£23,974 GBP
$32,123 USD
View
B
Retailer 9
-
£24,544 GBP
$32,886 USD
View
B
Retailer 10
-
£24,740 GBP
$33,149 USD
View
B
Retailer 11
-
£25,526 GBP
$34,202 USD
View
B
Retailer 12
-
£26,507 GBP
$35,517 USD
View
B
Retailer 13
-
£28,463 GBP
€36,321 EUR
View
B
Retailer 14
-
£30,545 GBP
ZAR 661,179 ZAR
View
Most Expensive
B
MOH London
D6DE74A63 · Nov 1
£36,799 GBP
View
14 more retailers have this diamond
Prices start from £20,461 GBPSave up to £16,338 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+
3.03ct Round
£20,461 GBP