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Marquise|Lab Grown|IGI

0.51ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG770686841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG770686841

Diamond specifications and retailer prices

From ₹9,020 INR
$95 USD
As of October 24, 2026
Save ₹27,061 INR (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: ₹71,267 INR at MOH London · As of October 18, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770686841 or 770686841. Listed at 16 retailers as of October 24, 2026, with a 300% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle33.1°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770686841
Dimensions8.17 × 4.21 × 2.55 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.17 mm4.21 mm0.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG770686841
Side View
Table 56.0%Crown 33.1°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 60.6%

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: Oct 24
Current: ₹71,267 INR|Low: ₹7,501 INR|High: ₹73,075 INR|Avg: ₹23,291 INR|-1.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 25, 2026
Retailer 9₹7,786 INR
Retailer 13₹8,640 INR
Retailer 8₹9,020 INR
Retailer 4₹10,255 INR
Retailer 3₹15,192 INR
Retailer 2₹16,155 INR
Retailer 15₹18,643 INR
Retailer 12₹19,940 INR
Retailer 6₹21,079 INR
Retailer 14₹24,670 INR
Retailer 7₹28,035 INR
Retailer 11₹31,049 INR
Retailer 5₹31,808 INR
Retailer 10₹36,081 INR
MOH London₹71,267 INR

38 data points across 15 retailers

16 retailers₹9,020 INR to ₹36,081 INR

Retailer 1
-
₹7,786 INR
$82 USD
Price last confirmed 7 days ago
A
Retailer 2
-
₹9,020 INR
$95 USD
View
Retailer 3
-
₹10,255 INR
$108 USD
View
Price last confirmed 11 days ago
A
Retailer 4
-
₹12,154 INR
HK$1,000 HKD
View
Retailer 5
-
₹15,192 INR
$160 USD
View
Price last confirmed 12 days ago
A
Retailer 6
-
₹16,155 INR
£134 GBP
View
A
Retailer 7
-
₹18,643 INR
€187 EUR
View
B+
Retailer 8
-
₹19,940 INR
$210 USD
View
Retailer 9
-
₹21,079 INR
$222 USD
View
Price last confirmed 13 days ago
Retailer 10
-
₹24,670 INR
£205 GBP
View
Price last confirmed 8 days ago
B+
Retailer 11
-
₹28,035 INR
SGD 399 SGD
View
Retailer 12
-
₹31,049 INR
$327 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
₹31,808 INR
$335 USD
View
B
Retailer 14
-
₹36,081 INR
$380 USD
View
B
Retailer 15
-
₹36,081 INR
$380 USD
View
Most Expensive
MOH London
LG770686841 · Oct 18
₹71,267 INR
£591 GBP
View
Price last confirmed 13 days ago
15 more retailers have this diamond
Prices start from ₹9,020 INRSave up to ₹27,061 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
₹9,020 INR