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Round|Lab Grown|IGI

1.50ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG492136401

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136401

Diamond specifications and retailer prices

From $1,300 USD
As of October 29, 2026
Save $3,995 USD (75%) 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 LG492136401 or 492136401. Listed at 11 retailers as of October 29, 2026, with prices from $1,300 to $5,295, a $3,995 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136401
Dimensions7.35 × 7.28 × 4.56 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
7.35 mm7.28 mm1.50 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136401
Side View
Table 56.5%Crown 36.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 62.4%

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 29
Current: $5,295 USD|Low: $1,300 USD|High: $5,338 USD|Avg: $2,708 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
October 29, 2026
Retailer 5$1,300 USD
Retailer 4$1,590 USD
Retailer 8$1,779 USD
Retailer 6$1,844 USD
Retailer 3$1,925 USD
Retailer 9$2,015 USD
Retailer 10$2,478 USD
Retailer 7$2,902 USD
Retailer 2$3,261 USD
Retailer 11$5,279 USD
MOH London$5,295 USD

16 data points across 11 retailers

11 retailers$1,300 USD to $5,295 USD

A
Cheapest Retailer
-
$1,300 USD
B+
Retailer 2
-
$1,590 USD
View
B+
Retailer 3
-
$1,730 USD
View
B+
Retailer 4
-
$1,779 USD
View
Final sale: no returns
Retailer 5
-
$1,844 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$1,844 USD
View
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
LG492136401 · Oct 29
$5,295 USD
£4,169 GBP
View
10 more retailers have this diamond
Prices start from $1,300 USDSave up to $3,995 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
$1,300 USD