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Marquise|Lab Grown|IGI

3.80ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG843619809

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843619809

Diamond specifications and retailer prices

From HK$3,562 HKD
$454 USD
As of November 2, 2026
Save HK$17,975 HKD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$21,538 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.8ct lab-grown marquise diamond

This 3.8ct 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 LG843619809 or 843619809. Listed at 12 retailers as of October 28, 2026, with prices from HK$3,562 to HK$21,538, a HK$17,975 spread on the same certified stone. Rare Carat lists it at HK$21,538. 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

3.80
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843619809
Dimensions16.30 × 8.27 × 5.04 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.30 mm8.27 mm3.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843619809
Side View
Table 62.0%Crown 35.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.9%

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$21,538 HKD|Low: HK$3,562 HKD|High: HK$21,538 HKD|Avg: HK$11,353 HKD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 13HK$3,562 HKD
Retailer 7HK$3,986 HKD
Retailer 11HK$4,941 HKD
Retailer 6HK$6,714 HKD
Retailer 5HK$7,579 HKD
Retailer 2HK$9,328 HKD
Retailer 9HK$11,871 HKD
Retailer 8HK$11,887 HKD
Retailer 4HK$14,194 HKD
Retailer 3HK$15,433 HKD
Retailer 10HK$16,312 HKD
Retailer 12HK$19,913 HKD
Rare CaratHK$21,538 HKD

9 data points across 13 retailers

12 retailersHK$3,562 HKD to HK$21,538 HKD

A
Cheapest Retailer
-
HK$3,562 HKD
$454 USD
A
Retailer 2
-
HK$3,986 HKD
$508 USD
View
Retailer 3
-
HK$6,714 HKD
€815 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$7,579 HKD
$966 USD
View
A
Retailer 5
-
HK$9,328 HKD
A$1,829 AUD
View
A
Retailer 6
-
HK$11,871 HKD
$1,513 USD
View
B+
Retailer 7
-
HK$11,887 HKD
$1,515 USD
View
B+
Retailer 8
-
HK$14,194 HKD
$1,809 USD
View
B+
Retailer 9
-
HK$15,433 HKD
$1,967 USD
View
B+
Retailer 10
-
HK$16,312 HKD
£1,637 GBP
View
B+
Retailer 11
-
HK$19,913 HKD
$2,538 USD
View
Most Expensive
B
Rare Carat
LGMQ30-167873 · Oct 28
HK$21,538 HKD
$2,745 USD
View
11 more retailers have this diamond
Prices start from HK$3,562 HKDSave up to HK$17,975 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
3.80ct Marquise
HK$3,562 HKD