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Round|Lab Grown|IGI

1.81ct E SI2 Round Lab Grown Diamond

ID • E/SI2 • IGI LG515227591

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515227591

Diamond specifications and retailer prices

From $429 SGD
$335 USD
As of October 29, 2026
Save $1,877 SGD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,307 SGD 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 E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515227591 or 515227591. Listed at 16 retailers as of October 29, 2026, with prices from $429 to $2,307, a $1,877 spread on the same certified stone. MOH London lists it at $2,307. 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
E
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515227591
Dimensions7.80 × 7.83 × 4.85 mm
L/W Ratio1.00
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
7.80 mm7.83 mm1.81 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515227591
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: $2,307 SGD|Low: $429 SGD|High: $2,307 SGD|Avg: $1,179 SGD
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
October 29, 2026
Retailer 12$429 SGD
Retailer 10$497 SGD
Retailer 9$532 SGD
Retailer 14$532 SGD
Retailer 6$690 SGD
Retailer 8$921 SGD
Retailer 11$972 SGD
Retailer 2$1,054 SGD
Retailer 5$1,102 SGD
Retailer 3$1,115 SGD
Retailer 7$1,175 SGD
Retailer 15$1,560 SGD
Retailer 13$1,888 SGD
Retailer 4$1,930 SGD
MOH London$2,307 SGD

13 data points across 15 retailers

16 retailers$429 SGD to $2,307 SGD

A
Cheapest Retailer
-
$429 SGD
$335 USD
A
Retailer 2
-
$497 SGD
$388 USD
View
A
Retailer 3
-
$532 SGD
$415 USD
View
A
Retailer 4
-
$532 SGD
$415 USD
View
B+
Retailer 5
-
$690 SGD
$538 USD
View
B+
Retailer 6
-
$921 SGD
£566 GBP
View
B+
Retailer 7
-
$972 SGD
$758 USD
View
B+
Retailer 8
-
$1,054 SGD
£648 GBP
View
B+
Retailer 9
-
$1,102 SGD
$860 USD
View
B
Retailer 10
-
$1,115 SGD
$870 USD
View
B+
Retailer 11
-
$1,175 SGD
$917 USD
View
B
Retailer 12
-
$1,560 SGD
$1,217 USD
View
B
Retailer 13
-
$1,888 SGD
$1,473 USD
View
B
Retailer 14
-
$1,930 SGD
$1,506 USD
View
B
Retailer 15
-
$1,974 SGD
$1,540 USD
View
Most Expensive
B
MOH London
LG515227591 · Oct 29
$2,307 SGD
£1,417 GBP
View
15 more retailers have this diamond
Prices start from $429 SGDSave up to $1,877 SGD

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
$429 SGD