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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG840631245

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840631245

Diamond specifications and retailer prices

From HK$2,432 HKD
$310 USD
As of November 2, 2026
Save HK$9,691 HKD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$12,123 HKD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 LG840631245 or 840631245. Listed at 19 retailers as of November 1, 2026, with prices from HK$2,432 to HK$12,123, a HK$9,691 spread on the same certified stone. Reve Diamonds lists it at HK$12,123. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840631245
Dimensions13.14 × 6.18 × 3.82 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.14 mm6.18 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840631245
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 61.8%

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: Nov 2
Current: HK$9,274 HKD|Low: HK$2,409 HKD|High: HK$12,476 HKD|Avg: HK$6,202 HKD|+2.2%
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
Reve Diamonds
November 2, 2026
Retailer 12HK$2,432 HKD
Retailer 6HK$2,723 HKD
Retailer 9HK$2,989 HKD
Retailer 18HK$3,021 HKD
Retailer 11HK$3,526 HKD
Retailer 16HK$4,064 HKD
Retailer 17HK$4,237 HKD
Retailer 14HK$5,204 HKD
Retailer 10HK$5,215 HKD
Retailer 13HK$5,372 HKD
Retailer 3HK$5,555 HKD
Retailer 7HK$6,972 HKD
Retailer 8HK$8,639 HKD
Retailer 1HK$9,274 HKD
Retailer 2HK$9,698 HKD
Retailer 5HK$10,064 HKD
Retailer 4HK$11,597 HKD
Retailer 15HK$12,097 HKD
Reve DiamondsHK$12,123 HKD

28 data points across 19 retailers

19 retailersHK$2,432 HKD to HK$12,123 HKD

A
Cheapest Retailer
-
HK$2,432 HKD
$310 USD
A
Retailer 2
-
HK$2,723 HKD
$347 USD
View
Final sale: no returns
Retailer 3
-
HK$2,989 HKD
$381 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$3,021 HKD
$385 USD
View
A
Retailer 5
-
HK$3,526 HKD
£354 GBP
View
B+
Retailer 6
-
HK$4,064 HKD
$518 USD
View
A
Retailer 7
-
HK$4,237 HKD
$540 USD
View
A
Retailer 8
-
HK$5,204 HKD
ZAR 10,714 ZAR
View
A
Retailer 9
-
HK$5,372 HKD
£539 GBP
View
A
Retailer 10
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HK$5,555 HKD
$708 USD
View
A
Retailer 11
-
HK$6,972 HKD
A$1,367 AUD
View
Retailer 12
-
HK$8,639 HKD
A$1,694 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
HK$9,274 HKD
$1,182 USD
View
B+
Retailer 14
-
HK$9,698 HKD
$1,236 USD
View
Retailer 15
-
HK$9,925 HKD
$1,265 USD
View
B+
Retailer 16
-
HK$10,064 HKD
$1,283 USD
View
B
Retailer 17
-
HK$11,597 HKD
$1,478 USD
View
B
Retailer 18
-
HK$12,097 HKD
£1,214 GBP
View
Most Expensive
B
Reve Diamonds
8EE645827 · Nov 1
HK$12,123 HKD
$1,545 USD
View
18 more retailers have this diamond
Prices start from HK$2,432 HKDSave up to HK$9,691 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$2,432 HKD