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Marquise|Lab Grown|IGI

3.80ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG812633618

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG812633618

Diamond specifications and retailer prices

From HK$3,829 HKD
$488 USD
As of November 1, 2026
Save HK$24,102 HKD (86%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: HK$27,931 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG812633618 or 812633618. Listed at 4 retailers as of October 31, 2026, with prices from HK$3,829 to HK$27,931, a HK$24,102 spread on the same certified stone. Brilliant Earth lists it at HK$27,931. 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 angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812633618
Dimensions17.12 × 8.19 × 4.91 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
17.12 mm8.19 mm3.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812633618
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°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$27,931 HKD|Low: HK$3,782 HKD|High: HK$28,794 HKD|Avg: HK$11,970 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 5HK$3,805 HKD
Retailer 3HK$3,829 HKD
Retailer 7HK$5,884 HKD
Retailer 2HK$7,180 HKD
Retailer 8HK$7,917 HKD
Retailer 9HK$9,689 HKD
Retailer 6HK$10,402 HKD
Retailer 10HK$15,378 HKD
Retailer 4HK$21,497 HKD
Brilliant EarthHK$27,931 HKD

37 data points across 10 retailers

4 retailersHK$3,829 HKD to HK$27,931 HKD

A
Cheapest Retailer
-
HK$3,829 HKD
$488 USD
Final sale: no returns
A
Retailer 2
-
HK$7,180 HKD
£721 GBP
View
Retailer 3
-
HK$21,497 HKD
$2,740 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
20331184A · Oct 31
HK$27,931 HKD
$3,560 USD
View
3 more retailers have this diamond
Prices start from HK$3,829 HKDSave up to HK$24,102 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$3,829 HKD