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Round|Natural|GIA

3.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 15635557557

Certificate GIA 15635557557

Diamond specifications and retailer prices

From £24,836 GBP
$33,277 USD
As of October 30, 2026
Save £14,224 GBP (36%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £39,060 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 15635557557. Listed at 15 retailers as of October 29, 2026, with prices from £24,836 to £39,060, a £14,224 spread on the same certified stone. MOH London lists it at £39,060. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 15635557557
Dimensions9.24 × 9.30 × 5.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Pinpoint, Natural
Top View
9.24 mm9.30 mm3.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 15635557557
Side View
Table 60.1%Crown 33.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 61.0%

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: Oct 30
Current: £39,060 GBP|Low: £24,712 GBP|High: £41,360 GBP|Avg: £29,238 GBP|-5.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 4£24,836 GBP
Retailer 12£24,862 GBP
Retailer 6£25,000 GBP
Retailer 5£25,171 GBP
Retailer 8£25,913 GBP
Retailer 14£26,648 GBP
Retailer 13£27,459 GBP
Retailer 11£27,719 GBP
Retailer 15£28,603 GBP
Retailer 3£29,747 GBP
Retailer 9£30,184 GBP
Retailer 10£30,571 GBP
Retailer 2£30,891 GBP
Retailer 7£32,647 GBP
MOH London£39,060 GBP

18 data points across 15 retailers

15 retailers£24,836 GBP to £39,060 GBP

B+
Cheapest Retailer
-
£24,836 GBP
$33,277 USD
B+
Retailer 2
-
£24,862 GBP
View
B+
Retailer 3
-
£25,000 GBP
$33,497 USD
View
B+
Retailer 4
-
£25,171 GBP
$33,726 USD
View
Final sale: no returns
B+
Retailer 5
-
£25,913 GBP
$34,721 USD
View
B+
Retailer 6
-
£26,648 GBP
$35,705 USD
View
B+
Retailer 7
-
£27,459 GBP
$36,792 USD
View
B+
Retailer 8
-
£27,719 GBP
View
B
Retailer 9
-
£28,603 GBP
$38,325 USD
View
B+
Retailer 10
-
£29,747 GBP
$39,858 USD
View
B+
Retailer 11
-
£30,184 GBP
€38,517 EUR
View
B+
Retailer 12
-
£30,571 GBP
$40,962 USD
View
B+
Retailer 13
-
£30,891 GBP
$41,391 USD
View
B
Retailer 14
-
£32,647 GBP
ZAR 706,681 ZAR
View
Most Expensive
B
MOH London
98930BF4E · Oct 29
£39,060 GBP
View
14 more retailers have this diamond
Prices start from £24,836 GBPSave up to £14,224 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
£24,836 GBP