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Round|Natural|GIA

3.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552180117

Certificate GIA 6552180117

Diamond specifications and retailer prices

From £21,900 GBP
$29,343 USD
As of October 31, 2026
Save £17,555 GBP (44%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £39,455 GBP at MOH London · As of November 1, 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 GIA 6552180117. Listed at 22 retailers as of October 31, 2026, with prices from £21,900 to £39,455, a £17,555 spread on the same certified stone. MOH London lists it at £39,455. 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
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552180117
Dimensions9.09 × 9.16 × 5.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
9.09 mm9.16 mm3.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552180117
Side View
Table 57.0%Crown 36°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 62.7%

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 31
Current: £39,455 GBP|Low: £21,900 GBP|High: £39,931 GBP|Avg: £28,074 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10£21,900 GBP
Retailer 8£24,654 GBP
Retailer 9£25,021 GBP
Retailer 2£25,250 GBP
Retailer 4£25,263 GBP
Retailer 11£26,316 GBP
Retailer 12£27,369 GBP
Retailer 3£28,421 GBP
Retailer 5£29,534 GBP
Retailer 6£30,671 GBP
Retailer 7£32,750 GBP
MOH London£39,455 GBP

38 data points across 12 retailers

22 retailers£21,900 GBP to £39,455 GBP

B+
Cheapest Retailer
-
£21,900 GBP
$29,343 USD
B+
Retailer 2
-
£23,001 GBP
$30,819 USD
View
B+
Retailer 3
-
£23,042 GBP
$30,874 USD
View
B+
Retailer 4
-
£23,472 GBP
$31,450 USD
View
B+
Retailer 5
-
£23,824 GBP
CA$44,335 CAD
View
B+
Retailer 6
-
£24,532 GBP
$32,870 USD
View
B+
Retailer 7
-
£24,654 GBP
$33,033 USD
View
Final sale: no returns
Retailer 8
-
£25,021 GBP
A$51,577 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
£25,061 GBP
$33,579 USD
View
B+
Retailer 10
-
£25,250 GBP
View
B+
Retailer 11
-
£25,263 GBP
$33,850 USD
View
B
Retailer 12
-
£26,316 GBP
$35,260 USD
View
B
Retailer 13
-
£27,013 GBP
$36,194 USD
View
B
Retailer 14
-
£27,369 GBP
$36,671 USD
View
B
Retailer 15
-
£28,321 GBP
$37,947 USD
View
B
Retailer 16
-
£28,421 GBP
$38,081 USD
View
B+
Retailer 17
-
£29,534 GBP
€37,688 EUR
View
B
Retailer 18
-
£29,543 GBP
$39,585 USD
View
B
Retailer 19
-
£29,808 GBP
$39,940 USD
View
B+
Retailer 20
-
£30,671 GBP
View
B
Retailer 21
-
£32,750 GBP
ZAR 708,908 ZAR
View
Most Expensive
B
MOH London
A731877DC · Nov 1
£39,455 GBP
View
21 more retailers have this diamond
Prices start from £21,900 GBPSave up to £17,555 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
£21,900 GBP