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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 $396 SGD
$310 USD
As of November 2, 2026
Save $1,580 SGD (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,976 SGD 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 18 retailers as of November 1, 2026, with prices from $396 to $1,976, a $1,580 spread on the same certified stone. Reve Diamonds lists it at $1,976. 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

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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: $1,512 SGD|Low: $393 SGD|High: $2,034 SGD|Avg: $1,011 SGD|+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 12$396 SGD
Retailer 6$444 SGD
Retailer 9$487 SGD
Retailer 18$492 SGD
Retailer 11$575 SGD
Retailer 16$662 SGD
Retailer 17$691 SGD
Retailer 14$848 SGD
Retailer 10$850 SGD
Retailer 13$876 SGD
Retailer 3$905 SGD
Retailer 7$1,136 SGD
Retailer 8$1,408 SGD
Retailer 1$1,512 SGD
Retailer 2$1,581 SGD
Retailer 5$1,640 SGD
Retailer 4$1,890 SGD
Retailer 15$1,972 SGD
Reve Diamonds$1,976 SGD

28 data points across 19 retailers

18 retailers$396 SGD to $1,976 SGD

A
Cheapest Retailer
-
$396 SGD
$310 USD
A
Retailer 2
-
$444 SGD
$347 USD
View
Final sale: no returns
Retailer 3
-
$487 SGD
$381 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$492 SGD
$385 USD
View
A
Retailer 5
-
$575 SGD
£354 GBP
View
B+
Retailer 6
-
$662 SGD
$518 USD
View
A
Retailer 7
-
$691 SGD
$540 USD
View
A
Retailer 8
-
$848 SGD
ZAR 10,714 ZAR
View
A
Retailer 9
-
$876 SGD
£539 GBP
View
A
Retailer 10
-
$905 SGD
$708 USD
View
A
Retailer 11
-
$1,136 SGD
A$1,367 AUD
View
Retailer 12
-
$1,408 SGD
A$1,694 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$1,512 SGD
$1,182 USD
View
B+
Retailer 14
-
$1,581 SGD
$1,236 USD
View
B+
Retailer 15
-
$1,640 SGD
$1,283 USD
View
B
Retailer 16
-
$1,890 SGD
$1,478 USD
View
B
Retailer 17
-
$1,972 SGD
£1,214 GBP
View
Most Expensive
B
Reve Diamonds
8EE645827 · Nov 1
$1,976 SGD
$1,545 USD
View
17 more retailers have this diamond
Prices start from $396 SGDSave up to $1,580 SGD

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
$396 SGD