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Marquise|Lab Grown|IGI

3.40ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG846632989

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG846632989

Diamond specifications and retailer prices

From HK$3,452 HKD
$440 USD
As of November 1, 2026
Save HK$16,869 HKD (83%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$20,321 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.4ct lab-grown marquise diamond

This 3.4ct lab-grown marquise sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG846632989 or 846632989. Listed at 3 retailers as of October 28, 2026, with prices from HK$3,452 to HK$20,321, a HK$16,869 spread on the same certified stone. Rare Carat lists it at HK$20,321. 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

3.40
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846632989
Dimensions15.06 × 7.83 × 4.94 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.06 mm7.83 mm3.40 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846632989
Side View
Table 63.0%Crown 36.6°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: HK$20,321 HKD|Low: HK$3,452 HKD|High: HK$20,321 HKD|Avg: HK$10,083 HKD
Rare Carat
Retailer 2
Retailer 3
November 2, 2026
Retailer 3HK$3,452 HKD
Retailer 2HK$6,530 HKD
Rare CaratHK$20,321 HKD

13 data points across 3 retailers

3 retailersHK$3,452 HKD to HK$20,321 HKD

A
Cheapest Retailer
-
HK$3,452 HKD
$440 USD
Final sale: no returns
A
Retailer 2
-
HK$6,530 HKD
£655 GBP
View
Most Expensive
B
Rare Carat
846632989 · Oct 28
HK$20,321 HKD
$2,590 USD
View
2 more retailers have this diamond
Prices start from HK$3,452 HKDSave up to HK$16,869 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
3.40ct Marquise
HK$3,452 HKD