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1.33ct H SI2 Round Lab Grown Diamond

ID • H/SI2 • IGI LG499191785

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499191785

Diamond specifications and retailer prices

From $731 USD
As of October 29, 2026
Save $2,615 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,346 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.33ct lab-grown round diamond

This 1.33ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499191785 or 499191785. Listed at 10 retailers as of October 29, 2026, with prices from $731 to $3,346, a $2,615 spread on the same certified stone. MOH London lists it at $3,346. 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

1.33
Carat
H
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499191785
Dimensions7.07 × 7.05 × 4.35 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
7.07 mm7.05 mm1.33 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499191785
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.6%

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: $3,346 USD|Low: $584 USD|High: $3,368 USD|Avg: $1,452 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
October 29, 2026
Retailer 5$731 USD
Retailer 10$795 USD
Retailer 9$818 USD
Retailer 7$848 USD
Retailer 6$960 USD
Retailer 3$1,024 USD
Retailer 12$1,341 USD
Retailer 8$1,373 USD
Retailer 4$1,897 USD
Retailer 2$2,087 USD
Retailer 11$2,383 USD
MOH London$3,346 USD

14 data points across 12 retailers

10 retailers$731 USD to $3,346 USD

A
Cheapest Retailer
-
$731 USD
A
Retailer 2
-
$795 USD
View
A
Retailer 3
-
$818 USD
View
Final sale: no returns
A
Retailer 4
-
$848 USD
View
Retailer 5
-
$848 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$960 USD
View
B+
Retailer 7
-
$1,373 USD
View
B
Retailer 8
-
$2,087 USD
View
B
Retailer 9
-
$2,383 USD
View
Most Expensive
B
MOH London
LG499191785 · Oct 29
$3,346 USD
£2,635 GBP
View
9 more retailers have this diamond
Prices start from $731 USDSave up to $2,615 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
1.33ct Round
$731 USD