Round|Natural|GIA

3.50ct G SI2 Round Natural Diamond

EX • G/SI2

Diamond specifications and retailer prices

From £35,198 GBP
CA$65,502 CAD
As of October 30, 2026
Save £9,936 GBP (22%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £45,134 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 10 retailers as of October 30, 2026, with prices from £35,198 to £45,134, a £9,936 spread on the same certified stone. Moon Ocean lists it at £45,134. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
Dimensions9.64 × 9.70 × 6.07 mm
L/W Ratio1.01
Top View
9.64 mm9.70 mm3.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £45,134 GBP|Low: £35,198 GBP|High: £45,571 GBP|Avg: £39,425 GBP|+1.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 9£35,198 GBP
Retailer 7£36,028 GBP
Retailer 4£36,586 GBP
Retailer 3£38,111 GBP
Retailer 5£38,111 GBP
Retailer 8£39,473 GBP
Retailer 6£39,635 GBP
Retailer 2£41,159 GBP
Retailer 10£42,509 GBP
Moon Ocean£45,134 GBP

17 data points across 10 retailers

10 retailers£35,198 GBP to £45,134 GBP

B+
Cheapest Retailer
-
£35,198 GBP
CA$65,502 CAD
B+
Retailer 2
-
£36,028 GBP
$48,273 USD
View
B+
Retailer 3
-
£36,586 GBP
$49,021 USD
View
B
Retailer 4
-
£38,111 GBP
$51,064 USD
View
B
Retailer 5
-
£38,111 GBP
$51,064 USD
View
B
Retailer 6
-
£39,473 GBP
$52,889 USD
View
B
Retailer 7
-
£39,635 GBP
$53,106 USD
View
Retailer 8
-
£41,159 GBP
$55,149 USD
View
B
Retailer 9
-
£42,509 GBP
$56,958 USD
View
Most Expensive
B
Moon Ocean
NVN-0D1A610CC-380 · Oct 30
£45,134 GBP
View
9 more retailers have this diamond
Prices start from £35,198 GBPSave up to £9,936 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
£35,198 GBP