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Marquise|Lab Grown|IGI

3.14ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG830691797

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830691797

Diamond specifications and retailer prices

From HK$3,334 HKD
$425 USD
As of October 30, 2026
Save HK$11,891 HKD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$16,425 HKD at Michael Trio · As of October 13, 2026
View at Michael Trio

About this 3.14ct lab-grown marquise diamond

This 3.14ct 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 LG830691797 or 830691797. Listed at 10 retailers as of October 26, 2026, with a 357% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.14
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830691797
Dimensions15.65 × 7.52 × 4.71 mm
L/W Ratio2.08
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.65 mm7.52 mm3.14 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830691797
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.6%

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: Oct 30
Current: HK$16,425 HKD|Low: HK$3,138 HKD|High: HK$16,425 HKD|Avg: HK$9,235 HKD|+3.7%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 8HK$3,334 HKD
Retailer 6HK$3,735 HKD
Retailer 3HK$5,083 HKD
Retailer 4HK$6,533 HKD
Retailer 10HK$7,124 HKD
Retailer 2HK$11,612 HKD
Retailer 7HK$11,612 HKD
Retailer 9HK$13,306 HKD
Retailer 5HK$15,225 HKD
Michael TrioHK$16,425 HKD

35 data points across 10 retailers

10 retailersHK$3,334 HKD to HK$15,225 HKD

A
Cheapest Retailer
-
HK$3,334 HKD
$425 USD
A
Retailer 2
-
HK$3,735 HKD
$476 USD
View
A
Retailer 3
-
HK$5,083 HKD
£510 GBP
View
A
Retailer 4
-
HK$6,533 HKD
€793 EUR
View
A
Retailer 5
-
HK$7,124 HKD
$908 USD
View
B
Retailer 6
-
HK$11,612 HKD
$1,480 USD
View
B
Retailer 7
-
HK$11,612 HKD
$1,480 USD
View
B
Retailer 8
-
HK$13,306 HKD
$1,696 USD
View
B
Retailer 9
-
HK$15,225 HKD
£1,528 GBP
View
Most Expensive
Michael Trio
1901723019 · Oct 13
HK$16,425 HKD
SGD 2,829 SGD
View
Price last confirmed 18 days ago
9 more retailers have this diamond
Prices start from HK$3,334 HKDSave up to HK$11,891 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
3.14ct Marquise
HK$3,334 HKD