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Marquise|Lab Grown|IGI

1.01ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG809685305

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809685305

Diamond specifications and retailer prices

From $321 USD
£252 GBP
As of November 2, 2026
Save $549 USD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $870 USD at MOH London · As of November 1, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG809685305 or 809685305. Listed at 7 retailers as of November 1, 2026, with prices from $321 to $870, a $549 spread on the same certified stone. MOH London lists it at $870. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809685305
Dimensions10.05 × 5.39 × 3.33 mm
L/W Ratio1.86
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.05 mm5.39 mm1.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809685305
Side View
Table 59.0%Crown 30.5°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.8%

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: Nov 2
Current: $870 USD|Low: $312 USD|High: $925 USD|Avg: $496 USD|-5.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$321 USD
Retailer 4$321 USD
Retailer 6$342 USD
Retailer 3$353 USD
Retailer 5$505 USD
Retailer 7$653 USD
MOH London$870 USD

41 data points across 7 retailers

7 retailers$321 USD to $870 USD

A
Cheapest Retailer
-
$321 USD
£252 GBP
A
Retailer 2
-
$321 USD
View
A
Retailer 3
-
$342 USD
View
A
Retailer 4
-
$353 USD
£278 GBP
View
B+
Retailer 5
-
$505 USD
View
B
Retailer 6
-
$653 USD
View
Most Expensive
B
MOH London
LG809685305 · Nov 1
$870 USD
£685 GBP
View
6 more retailers have this diamond
Prices start from $321 USDSave up to $549 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
$321 USD