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Round|Natural|IGI

3.00ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 723525568

Shape and cutting style on the report: Round brilliant

Certificate IGI 723525568

Diamond specifications and retailer prices

From £15,957 GBP
$21,380 USD
As of October 26, 2026
Save £10,921 GBP (41%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £26,878 GBP at MOH London · As of October 26, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 723525568. Listed at 12 retailers as of October 26, 2026, with prices from £15,957 to £26,878, a £10,921 spread on the same certified stone. MOH London lists it at £26,878. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 723525568
Dimensions9.00 × 8.87 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
9.00 mm8.87 mm3.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 723525568
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £26,878 GBP|Low: £10,822 GBP|High: £27,165 GBP|Avg: £18,952 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 4£10,822 GBP
Retailer 5£16,471 GBP
Retailer 9£17,186 GBP
Retailer 6£18,046 GBP
Retailer 7£18,619 GBP
Retailer 2£18,990 GBP
Retailer 8£19,335 GBP
Retailer 3£20,384 GBP
MOH London£26,878 GBP

39 data points across 9 retailers

12 retailers£15,957 GBP to £26,878 GBP

A
Retailer 1
-
£10,822 GBP
$14,500 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£15,957 GBP
$21,380 USD
View
B+
Retailer 3
-
£18,046 GBP
$24,180 USD
View
B+
Retailer 4
-
£18,599 GBP
$24,920 USD
View
B+
Retailer 5
-
£18,599 GBP
$24,920 USD
View
B+
Retailer 6
-
£18,619 GBP
$24,947 USD
View
A
Retailer 7
-
£18,990 GBP
View
B+
Retailer 8
-
£19,218 GBP
$25,750 USD
View
B+
Retailer 9
-
£19,335 GBP
$25,907 USD
View
B+
Retailer 10
-
£20,384 GBP
€26,012 EUR
View
B+
Retailer 11
-
£24,348 GBP
$32,623 USD
View
Most Expensive
B
MOH London
D8C93AAF9 · Oct 26
£26,878 GBP
View
11 more retailers have this diamond
Prices start from £15,957 GBPSave up to £10,921 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.

A
3.00ct Round
£15,957 GBP