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Marquise|Lab Grown|IGI

0.51ct D SI1 Marquise Lab Grown Diamond

EX • D/SI1 • IGI LG817665899

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817665899

Diamond specifications and retailer prices

From ₹14,996 INR
$158 USD
As of November 1, 2026
Save ₹66,848 INR (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: ₹81,844 INR at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown marquise diamond

This 0.51ct lab-grown marquise sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG817665899 or 817665899. Listed at 8 retailers as of October 29, 2026, with prices from ₹14,996 to ₹81,844, a ₹66,848 spread on the same certified stone. MOH London lists it at ₹81,844. 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

0.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817665899
Dimensions8.18 × 4.05 × 2.65 mm
L/W Ratio2.02
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.18 mm4.05 mm0.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG817665899
Side View
Table 63.0%Crown 37.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 65.4%

Caratlytics Score

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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 1
Current: ₹81,844 INR|Low: ₹11,769 INR|High: ₹82,446 INR|Avg: ₹31,292 INR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5₹11,769 INR
Retailer 8₹14,996 INR
Retailer 6₹17,558 INR
Retailer 3₹20,529 INR
Retailer 2₹20,966 INR
Retailer 4₹26,748 INR
Retailer 7₹36,066 INR
MOH London₹81,844 INR

44 data points across 8 retailers

8 retailers₹14,996 INR to ₹81,844 INR

Retailer 1
-
₹11,769 INR
$124 USD
Price last confirmed 8 days ago
A
Retailer 2
-
₹14,996 INR
$158 USD
View
A
Retailer 3
-
₹17,558 INR
$185 USD
View
A
Retailer 4
-
₹20,529 INR
€206 EUR
View
B+
Retailer 5
-
₹20,966 INR
£174 GBP
View
B+
Retailer 6
-
₹26,748 INR
£222 GBP
View
B
Retailer 7
-
₹36,066 INR
$380 USD
View
Most Expensive
B
MOH London
LG817665899 · Oct 29
₹81,844 INR
£679 GBP
View
7 more retailers have this diamond
Prices start from ₹14,996 INRSave up to ₹66,848 INR

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
0.51ct Marquise
₹14,996 INR