Round|Natural|GIA

3.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2221820466

Certificate GIA 2221820466

Diamond specifications and retailer prices

From £33,589 GBP
₹4,286,247 INR
As of October 31, 2026
Save £24,691 GBP (42%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £58,280 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 3.5ct natural round diamond

This 3.5ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2221820466. Listed at 20 retailers as of October 29, 2026, with prices from £33,589 to £58,280, a £24,691 spread on the same certified stone. MOH London lists it at £58,280. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2221820466
Dimensions9.75 × 9.69 × 5.96 mm
L/W Ratio1.01
Culet sizeNone
Top View
9.75 mm9.69 mm3.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2221820466
Side View
Table 60.0%Crown 33.5°Girdle: ThickPavilion 41.4°Culet: NoneDepth 61.4%

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 31
Current: £58,280 GBP|Low: £31,738 GBP|High: £58,667 GBP|Avg: £40,295 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6£31,738 GBP
Retailer 2£33,589 GBP
Retailer 8£33,638 GBP
Retailer 7£35,533 GBP
Retailer 3£37,140 GBP
Retailer 9£38,664 GBP
Retailer 4£43,776 GBP
Retailer 5£47,862 GBP
MOH London£58,280 GBP

35 data points across 9 retailers

20 retailers£33,589 GBP to £58,280 GBP

Retailer 1
-
£31,738 GBP
$42,525 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
£33,589 GBP
₹4,286,247 INR
View
B+
Retailer 3
-
£33,605 GBP
$45,027 USD
View
B+
Retailer 4
-
£33,638 GBP
$45,071 USD
View
B+
Retailer 5
-
£34,762 GBP
CA$64,690 CAD
View
Retailer 6
-
£35,533 GBP
A$73,247 AUD
View
Price last confirmed 28 days ago
B
Retailer 7
-
£35,951 GBP
$48,170 USD
View
B
Retailer 8
-
£37,118 GBP
$49,734 USD
View
B+
Retailer 9
-
£37,140 GBP
View
B
Retailer 10
-
£38,548 GBP
$51,650 USD
View
B
Retailer 11
-
£38,548 GBP
$51,650 USD
View
B
Retailer 12
-
£38,664 GBP
$51,806 USD
View
B
Retailer 13
-
£38,664 GBP
$51,806 USD
View
B
Retailer 14
-
£39,832 GBP
$53,370 USD
View
B
Retailer 15
-
£40,211 GBP
$53,878 USD
View
B
Retailer 16
-
£41,757 GBP
$55,950 USD
View
B
Retailer 17
-
£41,983 GBP
$56,252 USD
View
B
Retailer 18
-
£43,776 GBP
€55,862 EUR
View
B
Retailer 19
-
£47,862 GBP
ZAR 1,036,030 ZAR
View
Most Expensive
B
MOH London
2C4CE80FA · Oct 29
£58,280 GBP
View
19 more retailers have this diamond
Prices start from £33,589 GBPSave up to £24,691 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
£33,589 GBP