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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG818682269

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818682269

Diamond specifications and retailer prices

From HK$2,213 HKD
$282 USD
As of November 2, 2026
Save HK$9,337 HKD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$11,549 HKD at With Clarity · As of November 1, 2026
View at With Clarity

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818682269 or 818682269. Listed at 22 retailers as of November 1, 2026, with prices from HK$2,213 to HK$11,549, a HK$9,337 spread on the same certified stone. With Clarity lists it at HK$11,549. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818682269
Dimensions11.88 × 6.26 × 3.97 mm
L/W Ratio1.90
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.88 mm6.26 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818682269
Side View
Table 60.0%Crown 38.7°Girdle: STK-VTKPavilion 39.2°Culet: NoneDepth 63.4%

Caratlytics Score

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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: Nov 2
Current: HK$7,195 HKD|Low: HK$2,213 HKD|High: HK$11,549 HKD|Avg: HK$6,009 HKD|-1.0%
Retailer 1
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
With Clarity
November 2, 2026
Retailer 10HK$2,213 HKD
Retailer 11HK$2,472 HKD
Retailer 7HK$2,566 HKD
Retailer 4HK$2,746 HKD
Retailer 6HK$2,746 HKD
Retailer 12HK$3,206 HKD
Retailer 3HK$3,962 HKD
Retailer 20HK$4,527 HKD
Retailer 15HK$4,730 HKD
Retailer 14HK$4,799 HKD
Retailer 18HK$5,461 HKD
Retailer 8HK$5,469 HKD
Retailer 19HK$6,380 HKD
Retailer 1HK$7,195 HKD
Retailer 17HK$8,471 HKD
Retailer 13HK$8,802 HKD
Retailer 5HK$8,819 HKD
Retailer 9HK$9,214 HKD
Retailer 2HK$9,690 HKD
Retailer 16HK$10,991 HKD
With ClarityHK$11,549 HKD

25 data points across 21 retailers

22 retailersHK$2,213 HKD to HK$11,549 HKD

A
Cheapest Retailer
-
HK$2,213 HKD
$282 USD
A
Retailer 2
-
HK$2,472 HKD
$315 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,566 HKD
$327 USD
View
Retailer 4
-
HK$2,746 HKD
$350 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$2,746 HKD
$350 USD
View
A
Retailer 6
-
HK$3,206 HKD
£322 GBP
View
A
Retailer 7
-
HK$3,962 HKD
$505 USD
View
A
Retailer 8
-
HK$4,527 HKD
$577 USD
View
A
Retailer 9
-
HK$4,730 HKD
ZAR 9,739 ZAR
View
A
Retailer 10
-
HK$4,799 HKD
£482 GBP
View
A
Retailer 11
-
HK$5,461 HKD
$696 USD
View
A
Retailer 12
-
HK$5,469 HKD
$697 USD
View
A
Retailer 13
-
HK$6,380 HKD
A$1,251 AUD
View
B+
Retailer 14
-
HK$7,195 HKD
$917 USD
View
B+
Retailer 15
-
HK$8,471 HKD
A$1,661 AUD
View
B+
Retailer 16
-
HK$8,802 HKD
SGD 1,516 SGD
View
B+
Retailer 17
-
HK$8,819 HKD
$1,124 USD
View
B+
Retailer 18
-
HK$9,214 HKD
$1,174 USD
View
B+
Retailer 19
-
HK$9,690 HKD
$1,235 USD
View
B+
Retailer 20
-
HK$10,553 HKD
$1,345 USD
View
B+
Retailer 21
-
HK$10,991 HKD
£1,103 GBP
View
Most Expensive
B
With Clarity
818682269 · Nov 1
HK$11,549 HKD
$1,472 USD
View
21 more retailers have this diamond
Prices start from HK$2,213 HKDSave up to HK$9,337 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$2,213 HKD