Round|Natural|GIA

3.50ct G SI2 Round Natural Diamond

EX • G/SI2

Diamond specifications and retailer prices

From £30,035 GBP
CA$55,894 CAD
As of October 30, 2026
Save £8,323 GBP (22%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £38,358 GBP at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 12 retailers as of October 30, 2026, with prices from £30,035 to £38,358, a £8,323 spread on the same certified stone. Moon Ocean lists it at £38,358. 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

3.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions9.61 × 9.66 × 6.00 mm
L/W Ratio1.01
Top View
9.61 mm9.66 mm3.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.3%

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: £38,358 GBP|Low: £30,035 GBP|High: £39,704 GBP|Avg: £34,275 GBP|-1.4%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2£30,035 GBP
Retailer 3£31,094 GBP
Retailer 9£31,173 GBP
Retailer 4£32,389 GBP
Retailer 8£32,389 GBP
Retailer 6£33,683 GBP
Retailer 5£33,685 GBP
Retailer 10£34,980 GBP
Retailer 7£36,274 GBP
Moon Ocean£38,358 GBP

30 data points across 10 retailers

12 retailers£30,035 GBP to £38,358 GBP

B+
Cheapest Retailer
-
£30,035 GBP
CA$55,894 CAD
B+
Retailer 2
-
£31,094 GBP
$41,662 USD
View
B+
Retailer 3
-
£31,173 GBP
$41,768 USD
View
B+
Retailer 4
-
£32,389 GBP
$43,398 USD
View
B+
Retailer 5
-
£32,389 GBP
$43,398 USD
View
Retailer 6
-
£33,171 GBP
$44,446 USD
View
Price last confirmed 27 days ago
B+
Retailer 7
-
£33,683 GBP
$45,131 USD
View
B+
Retailer 8
-
£33,685 GBP
$45,134 USD
View
B+
Retailer 9
-
£34,980 GBP
$46,870 USD
View
Retailer 10
-
£35,825 GBP
$48,001 USD
View
Price last confirmed 28 days ago
B
Retailer 11
-
£36,274 GBP
$48,603 USD
View
Most Expensive
B
Moon Ocean
NVN-E1183CDBF-236 · Oct 30
£38,358 GBP
View
11 more retailers have this diamond
Prices start from £30,035 GBPSave up to £8,323 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+
3.50ct Round
£30,035 GBP