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Round|Natural|GIA

3.00ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 1246015955

Certificate GIA 1246015955

Diamond specifications and retailer prices

From £20,396 GBP
As of November 4, 2026
Save £14,153 GBP (41%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £34,549 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1246015955. Listed at 10 retailers as of November 4, 2026, with prices from £20,396 to £34,549, a £14,153 spread on the same certified stone. MOH London lists it at £34,549. 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

3.00
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1246015955
Dimensions9.14 × 9.20 × 5.74 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Feather, Cavity
Top View
9.14 mm9.20 mm3.00 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1246015955
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°CuletDepth 62.6%

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 4
Current: £34,549 GBP|Low: £22,394 GBP|High: £35,058 GBP|Avg: £27,136 GBP|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 3£22,394 GBP
Retailer 5£23,290 GBP
Retailer 4£26,032 GBP
Retailer 2£28,008 GBP
MOH London£34,549 GBP

41 data points across 5 retailers

10 retailers£20,396 GBP to £34,549 GBP

B+
Cheapest Retailer
-
£20,396 GBP
B+
Retailer 2
-
£21,111 GBP
View
B+
Retailer 3
-
£22,394 GBP
View
B+
Retailer 4
-
£23,105 GBP
View
B+
Retailer 5
-
£23,290 GBP
View
B+
Retailer 6
-
£24,029 GBP
View
B
Retailer 7
-
£24,953 GBP
View
B+
Retailer 8
-
£26,032 GBP
View
B
Retailer 9
-
£28,008 GBP
View
Most Expensive
B
MOH London
C3C4B9B6A · Nov 4
£34,549 GBP
View
9 more retailers have this diamond
Prices start from £20,396 GBPSave up to £14,153 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+
3.00ct Round
£20,396 GBP