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Round|Natural|GIA

3.00ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1236289670

Certificate GIA 1236289670

Diamond specifications and retailer prices

From £21,844 GBP
$29,269 USD
As of October 30, 2026
Save £15,457 GBP (41%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £37,301 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236289670. Listed at 10 retailers as of October 29, 2026, with prices from £21,844 to £37,301, a £15,457 spread on the same certified stone. MOH London lists it at £37,301. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1236289670
Dimensions9.19 × 9.27 × 5.67 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Girdle conditionFaceted
Top View
9.19 mm9.27 mm3.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1236289670
Side View
Table 58.0%Crown 34.5°Girdle: STK-STKPavilion 40.8°CuletDepth 61.5%

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 30
Current: £37,301 GBP|Low: £21,844 GBP|High: £37,550 GBP|Avg: £27,881 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 8£21,844 GBP
Retailer 3£23,976 GBP
Retailer 6£24,747 GBP
Retailer 9£24,945 GBP
Retailer 5£25,736 GBP
Retailer 7£26,726 GBP
Retailer 4£28,240 GBP
Retailer 2£29,307 GBP
MOH London£37,301 GBP

40 data points across 9 retailers

10 retailers£21,844 GBP to £37,301 GBP

B+
Cheapest Retailer
-
£21,844 GBP
$29,269 USD
B+
Retailer 2
-
£22,619 GBP
CA$42,094 CAD
View
B+
Retailer 3
-
£23,976 GBP
View
B+
Retailer 4
-
£24,747 GBP
$33,158 USD
View
B+
Retailer 5
-
£24,945 GBP
$33,423 USD
View
B
Retailer 6
-
£25,736 GBP
$34,484 USD
View
B
Retailer 7
-
£26,726 GBP
$35,810 USD
View
B
Retailer 8
-
£28,240 GBP
€36,037 EUR
View
B
Retailer 9
-
£29,307 GBP
View
Most Expensive
B
MOH London
DBC8824C7 · Oct 29
£37,301 GBP
View
9 more retailers have this diamond
Prices start from £21,844 GBPSave up to £15,457 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
£21,844 GBP