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Marquise|Lab Grown|IGI

0.78ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG650412894

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG650412894

Diamond specifications and retailer prices

From HK$769 HKD
$98 USD
As of October 30, 2026
Save HK$2,644 HKD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$3,413 HKD at Friendly Diamonds · As of October 31, 2026
View at Friendly Diamonds

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG650412894 or 650412894. Listed at 11 retailers as of October 30, 2026, with prices from HK$769 to HK$3,413, a HK$2,644 spread on the same certified stone. Friendly Diamonds lists it at HK$3,413. 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

0.78
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG650412894
Dimensions9.45 × 4.79 × 3.01 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
9.45 mm4.79 mm0.78 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG650412894
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.8%

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$3,413 HKD|Low: HK$769 HKD|High: HK$5,100 HKD|Avg: HK$2,376 HKD
Friendly Diamonds
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
November 1, 2026
Retailer 11HK$769 HKD
Retailer 2HK$894 HKD
Retailer 9HK$1,012 HKD
Retailer 14HK$1,105 HKD
Retailer 13HK$1,530 HKD
Retailer 4HK$1,796 HKD
Retailer 8HK$1,833 HKD
Retailer 3HK$1,946 HKD
Retailer 15HK$2,077 HKD
Retailer 12HK$2,856 HKD
Retailer 10HK$3,068 HKD
Retailer 6HK$3,272 HKD
Friendly DiamondsHK$3,413 HKD
Retailer 5HK$4,703 HKD
Retailer 7HK$5,100 HKD

5 data points across 15 retailers

11 retailersHK$769 HKD to HK$3,413 HKD

A
Cheapest Retailer
-
HK$769 HKD
$98 USD
A
Retailer 2
-
HK$894 HKD
$114 USD
View
A
Retailer 3
-
HK$1,012 HKD
$129 USD
View
A
Retailer 4
-
HK$1,105 HKD
View
A
Retailer 5
-
HK$1,530 HKD
$195 USD
View
A
Retailer 6
-
HK$1,833 HKD
£184 GBP
View
A
Retailer 7
-
HK$1,946 HKD
$248 USD
View
B+
Retailer 8
-
HK$2,077 HKD
£208 GBP
View
B+
Retailer 9
-
HK$2,856 HKD
$364 USD
View
B
Retailer 10
-
HK$3,068 HKD
$391 USD
View
Most Expensive
B
Friendly Diamonds
6558675 · Oct 31
HK$3,413 HKD
$435 USD
View
10 more retailers have this diamond
Prices start from HK$769 HKDSave up to HK$2,644 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
0.78ct Marquise
HK$769 HKD