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Marquise|Lab Grown|IGI

1.51ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818684380

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818684380

Diamond specifications and retailer prices

From HK$6,829 HKD
As of November 1, 2026
Save HK$18,979 HKD (74%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$25,808 HKD at MOH London · As of October 26, 2026
View at MOH London

About this 1.51ct lab-grown marquise diamond

This 1.51ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818684380 or 818684380. Listed at 13 retailers as of October 26, 2026, with prices from HK$6,829 to HK$25,808, a HK$18,979 spread on the same certified stone. MOH London lists it at HK$25,808. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684380
Dimensions11.84 × 6.08 × 3.65 mm
L/W Ratio1.95
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
11.84 mm6.08 mm1.51 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684380
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.0%

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 1
Current: HK$25,808 HKD|Low: HK$6,795 HKD|High: HK$26,087 HKD|Avg: HK$15,699 HKD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7HK$6,829 HKD
Retailer 10HK$8,395 HKD
Retailer 11HK$8,811 HKD
Retailer 6HK$9,070 HKD
Retailer 2HK$9,217 HKD
Retailer 3HK$14,075 HKD
Retailer 8HK$18,791 HKD
Retailer 4HK$19,188 HKD
Retailer 9HK$19,242 HKD
Retailer 5HK$20,164 HKD
Retailer 12HK$20,784 HKD
MOH LondonHK$25,808 HKD

34 data points across 12 retailers

13 retailersHK$6,829 HKD to HK$25,808 HKD

A
Cheapest Retailer
-
HK$6,829 HKD
A
Retailer 2
-
HK$8,395 HKD
$1,070 USD
View
A
Retailer 3
-
HK$8,811 HKD
$1,123 USD
View
A
Retailer 4
-
HK$9,070 HKD
€1,101 EUR
View
A
Retailer 5
-
HK$9,217 HKD
£925 GBP
View
A
Retailer 6
-
HK$11,220 HKD
$1,430 USD
View
Retailer 7
-
HK$14,075 HKD
$1,794 USD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
HK$18,791 HKD
$2,395 USD
View
B+
Retailer 9
-
HK$19,188 HKD
$2,446 USD
View
Retailer 10
-
HK$19,242 HKD
A$3,773 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
HK$20,164 HKD
$2,570 USD
View
B
Retailer 12
-
HK$20,784 HKD
$2,649 USD
View
Most Expensive
B
MOH London
LG818684380 · Oct 26
HK$25,808 HKD
£2,590 GBP
View
12 more retailers have this diamond
Prices start from HK$6,829 HKDSave up to HK$18,979 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
1.51ct Marquise
HK$6,829 HKD