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Marquise|Lab Grown|IGI

1.01ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436072891

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436072891

Diamond specifications and retailer prices

From $577 USD
As of November 2, 2026
Save $2,545 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,122 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.01ct lab-grown marquise diamond

This 1.01ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072891 or 436072891. Listed at 10 retailers as of October 29, 2026, with prices from $577 to $3,122, a $2,545 spread on the same certified stone. MOH London lists it at $3,122. 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

1.01
Carat
H
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072891
Dimensions9.62 × 5.36 × 3.42 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.62 mm5.36 mm1.01 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436072891
Side View
Table 63.5%Crown 35.3°Girdle: MED-STKPavilion 42°Culet: NoneDepth 63.8%

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: Nov 2
Current: $3,122 USD|Low: $554 USD|High: $3,143 USD|Avg: $1,274 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$577 USD
Retailer 2$580 USD
Retailer 6$715 USD
Retailer 3$845 USD
Retailer 7$1,099 USD
Retailer 8$1,136 USD
Retailer 4$1,775 USD
MOH London$3,122 USD

19 data points across 8 retailers

10 retailers$577 USD to $3,122 USD

A
Cheapest Retailer
-
$577 USD
A
Retailer 2
-
$580 USD
View
A
Retailer 3
-
$646 USD
View
A
Retailer 4
-
$715 USD
View
Retailer 5
-
$715 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$845 USD
View
B+
Retailer 7
-
$1,099 USD
View
B
Retailer 8
-
$1,775 USD
View
B
Retailer 9
-
$1,881 USD
View
Most Expensive
B
MOH London
LG436072891 · Oct 29
$3,122 USD
£2,458 GBP
View
9 more retailers have this diamond
Prices start from $577 USDSave up to $2,545 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
1.01ct Marquise
$577 USD