Round|Natural|GIA

3.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556837743

Certificate GIA 2556837743

Diamond specifications and retailer prices

From $39,761 USD
CA$55,223 CAD
As of October 30, 2026
Save $26,285 USD (40%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $66,045 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 GIA 2556837743. Listed at 15 retailers as of October 29, 2026, with prices from $39,761 to $66,045, a $26,285 spread on the same certified stone. MOH London lists it at $66,045. 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
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556837743
Dimensions9.56 × 9.63 × 6.10 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
9.56 mm9.63 mm3.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556837743
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.5%

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: $66,045 USD|Low: $32,768 USD|High: $66,485 USD|Avg: $43,490 USD|+0.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 9$32,768 USD
Retailer 7$34,418 USD
Retailer 8$36,125 USD
Retailer 6$39,589 USD
Retailer 12$39,761 USD
Retailer 16$40,357 USD
Retailer 5$41,508 USD
Retailer 11$41,846 USD
Retailer 10$42,490 USD
Retailer 3$44,210 USD
Retailer 17$44,210 USD
Retailer 13$44,590 USD
Retailer 4$45,680 USD
Retailer 14$48,020 USD
Retailer 15$49,049 USD
Retailer 2$50,071 USD
MOH London$66,045 USD

33 data points across 17 retailers

15 retailers$39,761 USD to $66,045 USD

Retailer 1
-
$32,768 USD
HK$256,000 HKD
Price last confirmed 52 days ago
B+
Retailer 2
-
$39,761 USD
CA$55,223 CAD
View
B+
Retailer 3
-
$40,357 USD
View
B
Retailer 4
-
$41,508 USD
A$63,858 AUD
View
B
Retailer 5
-
$41,846 USD
View
B+
Retailer 6
-
$42,490 USD
£33,457 GBP
View
Retailer 7
-
$43,816 USD
View
Price last confirmed 33 days ago
B
Retailer 8
-
$44,210 USD
View
B
Retailer 9
-
$44,210 USD
View
B
Retailer 10
-
$44,590 USD
View
B
Retailer 11
-
$45,680 USD
View
B
Retailer 12
-
$48,020 USD
View
B
Retailer 13
-
$49,049 USD
View
B
Retailer 14
-
$50,071 USD
€47,687 EUR
View
Most Expensive
B
MOH London
3B939C1D8 · Oct 29
$66,045 USD
£52,004 GBP
View
14 more retailers have this diamond
Prices start from $39,761 USDSave up to $26,285 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.

B+
3.50ct Round
$39,761 USD