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Marquise|Lab Grown|IGI

3.10ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG843676193

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843676193

Diamond specifications and retailer prices

From HK$3,013 HKD
$384 USD
As of October 29, 2026
Save HK$22,721 HKD (88%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: HK$25,734 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.1ct lab-grown marquise diamond

This 3.1ct lab-grown marquise sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG843676193 or 843676193. Listed at 3 retailers as of October 29, 2026, with prices from HK$3,013 to HK$25,734, a HK$22,721 spread on the same certified stone. Brilliant Earth lists it at HK$25,734. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.10
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843676193
Dimensions15.17 × 7.71 × 4.71 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
15.17 mm7.71 mm3.10 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843676193
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
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 29
Current: HK$25,734 HKD|Low: HK$3,013 HKD|High: HK$36,718 HKD|Avg: HK$16,404 HKD|-29.9%
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 3HK$3,013 HKD
Retailer 2HK$6,215 HKD
Brilliant EarthHK$25,734 HKD

19 data points across 3 retailers

3 retailersHK$3,013 HKD to HK$25,734 HKD

A
Cheapest Retailer
-
HK$3,013 HKD
$384 USD
Final sale: no returns
A
Retailer 2
-
HK$6,215 HKD
£624 GBP
View
Most Expensive
B
Brilliant Earth
21815858A · Oct 30
HK$25,734 HKD
$3,280 USD
View
2 more retailers have this diamond
Prices start from HK$3,013 HKDSave up to HK$22,721 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
3.10ct Marquise
HK$3,013 HKD