Round|Natural|GIA

3.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1418916380

Certificate GIA 1418916380

Diamond specifications and retailer prices

From £30,857 GBP
$41,345 USD
As of October 25, 2026
Save £28,934 GBP (48%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £59,791 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

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 1418916380. Listed at 28 retailers as of October 25, 2026, with prices from £30,857 to £59,791, a £28,934 spread on the same certified stone. Diamond Quarter lists it at £59,791. 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
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1418916380
Dimensions9.70 × 9.64 × 6.07 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.70 mm9.64 mm3.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1418916380
Side View
Table 58.0%Crown 34°Girdle: ThickPavilion 41.6°Culet: NoneDepth 62.7%

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: Oct 25
Current: £36,607 GBP|Low: £29,557 GBP|High: £57,828 GBP|Avg: £37,724 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7£30,857 GBP
Retailer 9£32,302 GBP
Retailer 8£33,537 GBP
Retailer 3£34,128 GBP
Retailer 6£35,468 GBP
Retailer 4£35,763 GBP
Retailer 1£36,607 GBP
Retailer 2£44,211 GBP
Retailer 5£57,215 GBP

39 data points across 9 retailers

28 retailers£30,857 GBP to £59,791 GBP

A
Cheapest Retailer
-
£30,857 GBP
$41,345 USD
B+
Retailer 2
-
£32,302 GBP
$43,281 USD
View
B+
Retailer 3
-
£33,156 GBP
$44,425 USD
View
B+
Retailer 4
-
£33,418 GBP
$44,776 USD
View
B+
Retailer 5
-
£33,517 GBP
$44,909 USD
View
B+
Retailer 6
-
£33,537 GBP
$44,936 USD
View
Final sale: no returns
B+
Retailer 7
-
£34,128 GBP
₹4,355,022 INR
View
B+
Retailer 8
-
£35,468 GBP
$47,524 USD
View
B+
Retailer 9
-
£35,763 GBP
$47,919 USD
View
B+
Retailer 10
-
£36,586 GBP
$49,021 USD
View
B+
Retailer 11
-
£36,607 GBP
View
B+
Retailer 12
-
£37,488 GBP
$50,230 USD
View
B+
Retailer 13
-
£37,488 GBP
$50,230 USD
View
B+
Retailer 14
-
£37,511 GBP
$50,261 USD
View
Retailer 15
-
£38,111 GBP
$51,064 USD
View
Price last confirmed 7 days ago
B
Retailer 16
-
£38,111 GBP
$51,064 USD
View
B
Retailer 17
-
£38,742 GBP
$51,910 USD
View
B
Retailer 18
-
£39,133 GBP
$52,434 USD
View
Retailer 19
-
£39,412 GBP
$52,808 USD
View
Price last confirmed 62 days ago
Retailer 20
-
£39,635 GBP
$53,106 USD
View
Price last confirmed 49 days ago
B
Retailer 21
-
£39,635 GBP
$53,106 USD
View
Retailer 22
-
£41,096 GBP
$55,064 USD
View
Price last confirmed 8 days ago
Retailer 23
-
£41,159 GBP
$55,149 USD
View
Price last confirmed 54 days ago
Retailer 24
-
£41,159 GBP
$55,149 USD
View
Price last confirmed 8 days ago
Retailer 25
-
£42,266 GBP
$56,632 USD
View
Price last confirmed 7 days ago
B
Retailer 26
-
£44,211 GBP
€56,417 EUR
View
B
Retailer 27
-
£57,215 GBP
View
Most Expensive
B
Diamond Quarter
3.5SI2G148010CCN · Oct 29
£59,791 GBP
View
27 more retailers have this diamond
Prices start from £30,857 GBPSave up to £28,934 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
3.50ct Round
£30,857 GBP