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Marquise|Lab Grown|IGI

0.51ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG440011400

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG440011400

Diamond specifications and retailer prices

From HK$2,393 HKD
$305 USD
As of November 2, 2026
Save HK$9,504 HKD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$11,897 HKD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440011400 or 440011400. Listed at 12 retailers as of November 1, 2026, with prices from HK$2,393 to HK$11,897, a HK$9,504 spread on the same certified stone. MOH London lists it at HK$11,897. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440011400
Dimensions7.93 × 4.24 × 2.60 mm
L/W Ratio1.87
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.93 mm4.24 mm0.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG440011400
Side View
Table 55.5%Crown 35.3°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 61.3%

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: HK$11,897 HKD|Low: HK$2,299 HKD|High: HK$12,037 HKD|Avg: HK$5,886 HKD
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
Retailer 16
November 1, 2026
Retailer 11HK$2,393 HKD
Retailer 9HK$2,511 HKD
Retailer 3HK$2,683 HKD
Retailer 8HK$2,699 HKD
Retailer 15HK$2,777 HKD
Retailer 12HK$2,966 HKD
Retailer 16HK$2,966 HKD
Retailer 5HK$4,197 HKD
Retailer 14HK$4,841 HKD
Retailer 2HK$5,429 HKD
Retailer 6HK$5,837 HKD
Retailer 10HK$9,125 HKD
Retailer 13HK$9,540 HKD
Retailer 4HK$11,254 HKD
MOH LondonHK$11,897 HKD
Retailer 7HK$11,927 HKD

23 data points across 16 retailers

12 retailersHK$2,393 HKD to HK$11,897 HKD

A
Cheapest Retailer
-
HK$2,393 HKD
$305 USD
A
Retailer 2
-
HK$2,511 HKD
$320 USD
View
B+
Retailer 3
-
HK$2,683 HKD
$342 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$2,777 HKD
$354 USD
View
Retailer 5
-
HK$2,966 HKD
$378 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
HK$2,966 HKD
$378 USD
View
B
Retailer 7
-
HK$4,841 HKD
$617 USD
View
B
Retailer 8
-
HK$5,429 HKD
€659 EUR
View
B
Retailer 9
-
HK$9,125 HKD
$1,163 USD
View
B
Retailer 10
-
HK$9,540 HKD
$1,216 USD
View
B
Retailer 11
-
HK$11,254 HKD
$1,434 USD
View
Most Expensive
B
MOH London
LG440011400 · Nov 1
HK$11,897 HKD
£1,194 GBP
View
11 more retailers have this diamond
Prices start from HK$2,393 HKDSave up to HK$9,504 HKD

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
HK$2,393 HKD