Round|Natural|IGI

3.00ct I SI1 Round Natural Diamond

EX • I/SI1 • IGI 801638389

Shape and cutting style on the report: Round brilliant

Certificate IGI 801638389

Diamond specifications and retailer prices

From $18,949 USD
₹1,804,656 INR
As of October 31, 2026
Save $14,682 USD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $33,631 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3ct natural round diamond

This 3ct 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 801638389. Listed at 15 retailers as of October 29, 2026, with prices from $18,949 to $33,631, a $14,682 spread on the same certified stone. MOH London lists it at $33,631. 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

3.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 801638389
Dimensions9.13 × 9.21 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
9.13 mm9.21 mm3.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801638389
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.8%

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: $33,631 USD|Low: $18,900 USD|High: $33,854 USD|Avg: $24,414 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$18,949 USD
Retailer 6$20,985 USD
Retailer 2$22,241 USD
Retailer 7$22,657 USD
Retailer 8$23,643 USD
Retailer 5$25,685 USD
Retailer 3$27,766 USD
MOH London$33,631 USD

43 data points across 8 retailers

15 retailers$18,949 USD to $33,631 USD

A
Cheapest Retailer
-
$18,949 USD
₹1,804,656 INR
A
Retailer 2
-
$20,985 USD
View
A
Retailer 3
-
$21,735 USD
View
A
Retailer 4
-
$22,241 USD
£17,513 GBP
View
A
Retailer 5
-
$22,657 USD
View
Final sale: no returns
A
Retailer 6
-
$23,035 USD
View
Retailer 7
-
$23,643 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$25,613 USD
View
Price last confirmed 39 days ago
Retailer 9
-
$25,613 USD
View
Price last confirmed 24 days ago
A
Retailer 10
-
$25,685 USD
€24,462 EUR
View
B+
Retailer 11
-
$26,298 USD
View
Retailer 12
-
$26,598 USD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$27,766 USD
ZAR 448,566 ZAR
View
Retailer 14
-
$30,344 USD
View
Price last confirmed 36 days ago
Most Expensive
B+
MOH London
43B34E3AB · Oct 29
$33,631 USD
£26,481 GBP
View
14 more retailers have this diamond
Prices start from $18,949 USDSave up to $14,682 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
3.00ct Round
$18,949 USD