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Marquise|Lab Grown|IGI

2.80ct E SI1 Marquise Lab Grown Diamond

EX • E/SI1 • IGI LG778698703

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778698703

Diamond specifications and retailer prices

From HK$2,683 HKD
$342 USD
As of October 30, 2026
Save HK$15,872 HKD (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$18,555 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 2.8ct lab-grown marquise diamond

This 2.8ct lab-grown marquise sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778698703 or 778698703. Listed at 14 retailers as of October 28, 2026, with prices from HK$2,683 to HK$18,555, a HK$15,872 spread on the same certified stone. Rare Carat lists it at HK$18,555. 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

2.80
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778698703
Dimensions14.60 × 7.29 × 4.66 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.60 mm7.29 mm2.80 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778698703
Side View
Table 58.0%Crown 36.1°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.9%

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: Oct 30
Current: HK$18,555 HKD|Low: HK$2,683 HKD|High: HK$18,555 HKD|Avg: HK$7,125 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
Retailer 14
Retailer 15
October 31, 2026
Retailer 8HK$2,683 HKD
Retailer 6HK$3,115 HKD
Retailer 11HK$3,327 HKD
Retailer 15HK$3,716 HKD
Retailer 9HK$4,177 HKD
Retailer 12HK$4,511 HKD
Retailer 5HK$5,351 HKD
Retailer 14HK$5,735 HKD
Retailer 10HK$5,969 HKD
Retailer 4HK$7,595 HKD
Retailer 7HK$7,670 HKD
Retailer 2HK$9,752 HKD
Retailer 3HK$10,694 HKD
Retailer 13HK$13,402 HKD
Rare CaratHK$18,555 HKD

4 data points across 15 retailers

14 retailersHK$2,683 HKD to HK$18,555 HKD

A
Cheapest Retailer
-
HK$2,683 HKD
$342 USD
A
Retailer 2
-
HK$3,115 HKD
$397 USD
View
A
Retailer 3
-
HK$3,327 HKD
$424 USD
View
A
Retailer 4
-
HK$3,716 HKD
View
A
Retailer 5
-
HK$4,177 HKD
£419 GBP
View
A
Retailer 6
-
HK$4,511 HKD
$575 USD
View
B+
Retailer 7
-
HK$5,351 HKD
$682 USD
View
A
Retailer 8
-
HK$5,735 HKD
$731 USD
View
A
Retailer 9
-
HK$5,969 HKD
£599 GBP
View
B+
Retailer 10
-
HK$7,595 HKD
$968 USD
View
B+
Retailer 11
-
HK$9,752 HKD
$1,243 USD
View
B+
Retailer 12
-
HK$10,694 HKD
$1,363 USD
View
B
Retailer 13
-
HK$13,402 HKD
£1,345 GBP
View
Most Expensive
B
Rare Carat
KI7036987KF778 · Oct 28
HK$18,555 HKD
$2,365 USD
View
13 more retailers have this diamond
Prices start from HK$2,683 HKDSave up to HK$15,872 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
2.80ct Marquise
HK$2,683 HKD