CaratHunter
Plans
Round|Natural|IGI

3.50ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 526257569

Shape and cutting style on the report: Round brilliant

Certificate IGI 526257569

Diamond specifications and retailer prices

From $24,649 USD
₹2,347,477 INR
As of October 31, 2026
Save $18,335 USD (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $42,983 USD 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 IGI 526257569. Listed at 14 retailers as of October 29, 2026, with prices from $24,649 to $42,983, a $18,335 spread on the same certified stone. MOH London lists it at $42,983. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 526257569
Dimensions9.66 × 9.71 × 6.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
9.66 mm9.71 mm3.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 526257569
Side View
Table 58.5%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.1%

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 31
Current: $42,983 USD|Low: $24,586 USD|High: $44,224 USD|Avg: $31,279 USD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 2$24,649 USD
Retailer 3$27,512 USD
Retailer 4$27,699 USD
Retailer 7$28,055 USD
Retailer 11$28,516 USD
Retailer 13$29,370 USD
Retailer 8$30,217 USD
Retailer 10$31,728 USD
Retailer 5$32,735 USD
Retailer 6$33,217 USD
Retailer 12$33,994 USD
Retailer 9$35,299 USD
MOH London$42,983 USD

35 data points across 13 retailers

14 retailers$24,649 USD to $42,983 USD

A
Cheapest Retailer
-
$24,649 USD
₹2,347,477 INR
A
Retailer 2
-
$27,512 USD
View
A
Retailer 3
-
$27,699 USD
View
Final sale: no returns
A
Retailer 4
-
$28,055 USD
£22,090 GBP
View
A
Retailer 5
-
$28,516 USD
View
A
Retailer 6
-
$28,939 USD
View
A
Retailer 7
-
$29,370 USD
View
A
Retailer 8
-
$30,217 USD
View
B+
Retailer 9
-
$31,728 USD
View
B+
Retailer 10
-
$32,735 USD
View
B+
Retailer 11
-
$33,217 USD
€31,635 EUR
View
B+
Retailer 12
-
$33,994 USD
View
B+
Retailer 13
-
$35,299 USD
ZAR 570,266 ZAR
View
Most Expensive
B
MOH London
FD8BC17A8 · Oct 29
$42,983 USD
£33,845 GBP
View
13 more retailers have this diamond
Prices start from $24,649 USDSave up to $18,335 USD

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
$24,649 USD