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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG492136639

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136639

Diamond specifications and retailer prices

From $1,190 USD
As of October 31, 2026
Save $4,105 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,295 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136639 or 492136639. Listed at 11 retailers as of October 29, 2026, with prices from $1,190 to $5,295, a $4,105 spread on the same certified stone. MOH London lists it at $5,295. 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

1.50
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136639
Dimensions7.34 × 7.29 × 4.54 mm
L/W Ratio1.01
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
7.34 mm7.29 mm1.50 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136639
Side View
Table 57.5%Crown 35.8°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.1%

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 31
Current: $5,295 USD|Low: $1,190 USD|High: $5,338 USD|Avg: $2,461 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$1,190 USD
Retailer 4$1,590 USD
Retailer 7$1,781 USD
Retailer 5$1,844 USD
Retailer 10$1,925 USD
Retailer 8$2,015 USD
Retailer 9$2,478 USD
Retailer 6$2,902 USD
Retailer 3$3,261 USD
MOH London$5,295 USD

15 data points across 10 retailers

11 retailers$1,190 USD to $5,295 USD

A
Cheapest Retailer
-
$1,190 USD
B+
Retailer 2
-
$1,590 USD
View
B+
Retailer 3
-
$1,730 USD
View
B+
Retailer 4
-
$1,781 USD
View
Final sale: no returns
B
Retailer 5
-
$1,844 USD
View
Retailer 6
-
$1,844 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,015 USD
View
B
Retailer 8
-
$2,902 USD
View
B
Retailer 9
-
$3,261 USD
View
B
Retailer 10
-
$3,457 USD
View
Most Expensive
B
MOH London
LG492136639 · Oct 29
$5,295 USD
£4,169 GBP
View
10 more retailers have this diamond
Prices start from $1,190 USDSave up to $4,105 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
1.50ct Round
$1,190 USD