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Round|Natural|GIA

3.30ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2566358520

Certificate GIA 2566358520

Diamond specifications and retailer prices

From £18,227 GBP
HK$190,800 HKD
As of November 1, 2026
Save £15,688 GBP (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £33,916 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 3.3ct natural round diamond

This 3.3ct natural round sits in the three to five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566358520. Listed at 23 retailers as of November 1, 2026, with prices from £18,227 to £33,916, a £15,688 spread on the same certified stone. MOH London lists it at £33,916. 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

3.30
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566358520
Dimensions9.48 × 9.39 × 5.90 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
9.48 mm9.39 mm3.30 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566358520
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: Nov 1
Current: £33,916 GBP|Low: £18,227 GBP|High: £34,210 GBP|Avg: £22,770 GBP|-0.9%
MOH London
Retailer 2
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Retailer 23
November 1, 2026
Retailer 23£18,227 GBP
Retailer 2£19,084 GBP
Retailer 6£19,968 GBP
Retailer 3£19,990 GBP
Retailer 21£20,560 GBP
Retailer 4£21,241 GBP
Retailer 8£21,488 GBP
Retailer 7£22,621 GBP
Retailer 16£22,792 GBP
Retailer 19£22,802 GBP
Retailer 5£22,845 GBP
Retailer 9£22,954 GBP
Retailer 20£23,526 GBP
Retailer 18£23,683 GBP
Retailer 10£23,718 GBP
Retailer 14£23,718 GBP
Retailer 13£23,780 GBP
Retailer 12£23,904 GBP
Retailer 11£24,431 GBP
Retailer 22£24,509 GBP
Retailer 17£26,350 GBP
Retailer 15£26,721 GBP
MOH London£33,916 GBP

26 data points across 23 retailers

23 retailers£18,227 GBP to £33,916 GBP

A
Cheapest Retailer
-
£18,227 GBP
HK$190,800 HKD
B+
Retailer 2
-
£19,084 GBP
$25,570 USD
View
B+
Retailer 3
-
£19,968 GBP
$26,755 USD
View
B+
Retailer 4
-
£19,990 GBP
$26,784 USD
View
B+
Retailer 5
-
£20,560 GBP
SGD 37,227 SGD
View
B+
Retailer 6
-
£21,241 GBP
$28,460 USD
View
B+
Retailer 7
-
£21,488 GBP
$28,792 USD
View
B
Retailer 8
-
£22,621 GBP
$30,310 USD
View
Retailer 9
-
£22,792 GBP
View
Price last confirmed 13 days ago
B
Retailer 10
-
£22,802 GBP
$30,552 USD
View
B
Retailer 11
-
£22,845 GBP
SGD 41,364 SGD
View
B
Retailer 12
-
£22,954 GBP
$30,756 USD
View
B
Retailer 13
-
£23,526 GBP
$31,522 USD
View
B
Retailer 14
-
£23,683 GBP
$31,732 USD
View
B
Retailer 15
-
£23,718 GBP
$31,780 USD
View
B
Retailer 16
-
£23,718 GBP
$31,780 USD
View
B
Retailer 17
-
£23,780 GBP
View
B
Retailer 18
-
£23,904 GBP
$32,028 USD
View
B+
Retailer 19
-
£24,431 GBP
$32,735 USD
View
B+
Retailer 20
-
£24,509 GBP
$32,840 USD
View
B
Retailer 21
-
£26,350 GBP
€33,625 EUR
View
B
Retailer 22
-
£26,721 GBP
$35,804 USD
View
Most Expensive
B
MOH London
E2F4F3E54 · Nov 1
£33,916 GBP
View
22 more retailers have this diamond
Prices start from £18,227 GBPSave up to £15,688 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
3.30ct Round
£18,227 GBP