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Round|Lab Grown|IGI

1.81ct J SI2 Round Lab Grown Diamond

EX • J/SI2 • IGI LG478124679

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478124679

Diamond specifications and retailer prices

From $1,259 USD
As of October 29, 2026
Save $3,458 USD (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,717 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown round diamond

This 1.81ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478124679 or 478124679. Listed at 11 retailers as of October 29, 2026, with prices from $1,259 to $4,717, a $3,458 spread on the same certified stone. MOH London lists it at $4,717. 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

1.81
Carat
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478124679
Dimensions7.77 × 7.80 × 4.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.77 mm7.80 mm1.81 ctJ / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478124679
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $4,717 USD|Low: $1,007 USD|High: $4,749 USD|Avg: $2,127 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
Retailer 13
October 30, 2026
Retailer 6$1,259 USD
Retailer 7$1,290 USD
Retailer 11$1,370 USD
Retailer 10$1,410 USD
Retailer 8$1,460 USD
Retailer 13$1,460 USD
Retailer 2$1,699 USD
Retailer 4$2,034 USD
Retailer 9$2,313 USD
Retailer 3$2,722 USD
Retailer 12$2,737 USD
Retailer 5$3,266 USD
MOH London$4,717 USD

24 data points across 13 retailers

11 retailers$1,259 USD to $4,717 USD

A
Cheapest Retailer
-
$1,259 USD
A
Retailer 2
-
$1,290 USD
View
A
Retailer 3
-
$1,370 USD
View
B+
Retailer 4
-
$1,410 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,460 USD
View
Retailer 6
-
$1,460 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$1,699 USD
£1,338 GBP
View
B
Retailer 8
-
$2,313 USD
View
B
Retailer 9
-
$2,722 USD
View
B
Retailer 10
-
$2,737 USD
View
Most Expensive
B
MOH London
LG478124679 · Oct 29
$4,717 USD
£3,714 GBP
View
10 more retailers have this diamond
Prices start from $1,259 USDSave up to $3,458 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
1.81ct Round
$1,259 USD