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Marquise|Lab Grown|IGI

1.78ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG815645044

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG815645044

Diamond specifications and retailer prices

From HK$3,185 HKD
$406 USD
As of October 28, 2026
Save HK$8,336 HKD (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$11,521 HKD at Frank Darling · As of October 26, 2026
View at Frank Darling

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG815645044 or 815645044. Listed at 3 retailers as of October 26, 2026, with prices from HK$3,185 to HK$11,521, a HK$8,336 spread on the same certified stone. Frank Darling lists it at HK$11,521. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815645044
Dimensions12.67 × 6.11 × 3.95 mm
L/W Ratio2.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.67 mm6.11 mm1.78 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815645044
Side View
Table 60.0%Crown 37.3°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: HK$11,521 HKD|Low: HK$2,134 HKD|High: HK$11,521 HKD|Avg: HK$6,178 HKD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 2HK$2,134 HKD
Retailer 3HK$3,185 HKD
Retailer 4HK$8,505 HKD
Frank DarlingHK$11,521 HKD

10 data points across 4 retailers

3 retailersHK$3,185 HKD to HK$11,521 HKD

B+
Cheapest Retailer
-
HK$3,185 HKD
$406 USD
B+
Retailer 2
-
HK$8,505 HKD
$1,084 USD
View
Most Expensive
B
Frank Darling
100755802910KD · Oct 26
HK$11,521 HKD
$1,469 USD
View
2 more retailers have this diamond
Prices start from HK$3,185 HKDSave up to HK$8,336 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.

B+
1.78ct Marquise
HK$3,185 HKD