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Marquise|Lab Grown|IGI

3.78ct G VVS2 Marquise Lab Grown Diamond

EX • G/VVS2 • IGI LG812618564

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812618564

Diamond specifications and retailer prices

From HK$4,048 HKD
$516 USD
As of October 31, 2026
Save HK$22,313 HKD (85%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$26,362 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.78ct lab-grown marquise diamond

This 3.78ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG812618564 or 812618564. Listed at 3 retailers as of October 28, 2026, with prices from HK$4,048 to HK$26,362, a HK$22,313 spread on the same certified stone. Rare Carat lists it at HK$26,362. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.78
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812618564
Dimensions16.83 × 8.04 × 4.94 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.83 mm8.04 mm3.78 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812618564
Side View
Table 62.0%Crown 35.3°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.4%

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: Oct 31
Current: HK$26,362 HKD|Low: HK$4,001 HKD|High: HK$26,754 HKD|Avg: HK$11,162 HKD|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 3HK$4,048 HKD
Retailer 5HK$6,253 HKD
Retailer 4HK$7,532 HKD
Retailer 2HK$7,732 HKD
Retailer 6HK$11,470 HKD
Retailer 7HK$13,416 HKD
Rare CaratHK$26,362 HKD

35 data points across 7 retailers

3 retailersHK$4,048 HKD to HK$26,362 HKD

A
Cheapest Retailer
-
HK$4,048 HKD
$516 USD
Final sale: no returns
A
Retailer 2
-
HK$7,732 HKD
£776 GBP
View
Most Expensive
B
Rare Carat
812618564 · Oct 28
HK$26,362 HKD
$3,360 USD
View
2 more retailers have this diamond
Prices start from HK$4,048 HKDSave up to HK$22,313 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
3.78ct Marquise
HK$4,048 HKD