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Round|Lab Grown|IGI

1.53ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG496121306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG496121306

Diamond specifications and retailer prices

From $850 USD
As of October 31, 2026
Save $3,784 USD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,634 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496121306 or 496121306. Listed at 11 retailers as of October 29, 2026, with prices from $850 to $4,634, a $3,784 spread on the same certified stone. MOH London lists it at $4,634. 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

1.53
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496121306
Dimensions7.54 × 7.58 × 4.43 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
7.54 mm7.58 mm1.53 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496121306
Side View
Table 59.0%Crown 33°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 58.6%

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: $4,634 USD|Low: $850 USD|High: $4,671 USD|Avg: $2,286 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$850 USD
Retailer 3$1,391 USD
Retailer 6$1,558 USD
Retailer 4$1,614 USD
Retailer 7$1,785 USD
Retailer 9$2,205 USD
Retailer 5$2,548 USD
Retailer 8$2,929 USD
MOH London$4,634 USD

15 data points across 9 retailers

11 retailers$850 USD to $4,634 USD

A
Cheapest Retailer
-
$850 USD
B+
Retailer 2
-
$1,391 USD
View
B+
Retailer 3
-
$1,514 USD
View
B+
Retailer 4
-
$1,558 USD
View
Final sale: no returns
Retailer 5
-
$1,614 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$1,614 USD
View
B+
Retailer 7
-
$1,785 USD
View
B
Retailer 8
-
$2,548 USD
View
B
Retailer 9
-
$2,929 USD
View
B
Retailer 10
-
$3,025 USD
View
Most Expensive
B
MOH London
LG496121306 · Oct 29
$4,634 USD
£3,649 GBP
View
10 more retailers have this diamond
Prices start from $850 USDSave up to $3,784 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
1.53ct Round
$850 USD