Round|Lab Grown|IGI

2.91ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG490193838

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490193838

Diamond specifications and retailer prices

From $1,630 USD
As of October 31, 2026
Save $7,409 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $9,039 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.91ct lab-grown round diamond

This 2.91ct lab-grown round sits in the two to three carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490193838 or 490193838. Listed at 12 retailers as of October 29, 2026, with prices from $1,630 to $9,039, a $7,409 spread on the same certified stone. MOH London lists it at $9,039. 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

2.91
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490193838
Dimensions9.18 × 9.25 × 5.48 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.18 mm9.25 mm2.91 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490193838
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.4%

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: $9,039 USD|Low: $1,630 USD|High: $12,694 USD|Avg: $5,130 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 5$1,630 USD
Retailer 7$3,058 USD
Retailer 11$3,424 USD
Retailer 8$3,547 USD
Retailer 10$3,547 USD
Retailer 12$3,705 USD
Retailer 2$4,220 USD
Retailer 3$4,287 USD
Retailer 6$4,992 USD
Retailer 9$5,511 USD
MOH London$9,039 USD
Retailer 4$12,694 USD

35 data points across 12 retailers

12 retailers$1,630 USD to $9,039 USD

A
Cheapest Retailer
-
$1,630 USD
B+
Retailer 2
-
$3,058 USD
View
B+
Retailer 3
-
$3,327 USD
View
B+
Retailer 4
-
$3,424 USD
View
Final sale: no returns
Retailer 5
-
$3,547 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$3,547 USD
View
B+
Retailer 7
-
$3,705 USD
View
B+
Retailer 8
-
$4,220 USD
£3,323 GBP
View
B
Retailer 9
-
$4,432 USD
View
B
Retailer 10
-
$4,992 USD
View
B
Retailer 11
-
$5,511 USD
View
Most Expensive
B
MOH London
LG490193838 · Oct 29
$9,039 USD
£7,117 GBP
View
11 more retailers have this diamond
Prices start from $1,630 USDSave up to $7,409 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
2.91ct Round
$1,630 USD