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Marquise|Lab Grown|IGI

1.78ct F VVS1 Marquise Lab Grown Diamond

VG • F/VVS1 • IGI LG762550421

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762550421

Diamond specifications and retailer prices

From HK$2,056 HKD
$262 USD
As of November 2, 2026
Save HK$13,087 HKD (86%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$15,143 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG762550421 or 762550421. Listed at 11 retailers as of November 2, 2026, with prices from HK$2,056 to HK$15,143, a HK$13,087 spread on the same certified stone. Brilliant Earth lists it at HK$15,143. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762550421
Dimensions13.28 × 6.32 × 3.67 mm
L/W Ratio2.10
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.28 mm6.32 mm1.78 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762550421
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 58.1%

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 2
Current: HK$15,143 HKD|Low: HK$2,056 HKD|High: HK$17,811 HKD|Avg: HK$7,117 HKD|-15.0%
Brilliant Earth
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
Retailer 16
November 2, 2026
Retailer 10HK$2,056 HKD
Retailer 11HK$2,385 HKD
Retailer 2HK$2,721 HKD
Retailer 6HK$3,515 HKD
Retailer 3HK$3,531 HKD
Retailer 14HK$3,531 HKD
Retailer 16HK$4,729 HKD
Retailer 7HK$5,721 HKD
Retailer 15HK$5,982 HKD
Retailer 5HK$6,630 HKD
Retailer 9HK$7,823 HKD
Retailer 13HK$8,191 HKD
Retailer 4HK$9,983 HKD
Retailer 12HK$10,204 HKD
Retailer 8HK$14,624 HKD
Brilliant EarthHK$15,143 HKD

34 data points across 16 retailers

11 retailersHK$2,056 HKD to HK$15,143 HKD

A
Cheapest Retailer
-
HK$2,056 HKD
$262 USD
A
Retailer 2
-
HK$2,385 HKD
$304 USD
View
A
Retailer 3
-
HK$2,721 HKD
£273 GBP
View
B+
Retailer 4
-
HK$3,531 HKD
$450 USD
View
A
Retailer 5
-
HK$3,531 HKD
$450 USD
View
A
Retailer 6
-
HK$4,729 HKD
€574 EUR
View
A
Retailer 7
-
HK$5,982 HKD
A$1,173 AUD
View
B+
Retailer 8
-
HK$7,823 HKD
$997 USD
View
B+
Retailer 9
-
HK$8,191 HKD
$1,044 USD
View
B+
Retailer 10
-
HK$10,204 HKD
£1,024 GBP
View
Most Expensive
B
Brilliant Earth
18247344A · Nov 2
HK$15,143 HKD
$1,930 USD
View
10 more retailers have this diamond
Prices start from HK$2,056 HKDSave up to HK$13,087 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
1.78ct Marquise
HK$2,056 HKD