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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 $361 SGD
$282 USD
As of November 2, 2026
Save $1,522 SGD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,883 SGD 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 $361 to $1,883, a $1,522 spread on the same certified stone. With Clarity lists it at $1,883. 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: $1,173 SGD|Low: $361 SGD|High: $1,883 SGD|Avg: $979 SGD|-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 10$361 SGD
Retailer 11$403 SGD
Retailer 7$418 SGD
Retailer 4$448 SGD
Retailer 6$448 SGD
Retailer 12$523 SGD
Retailer 3$646 SGD
Retailer 20$738 SGD
Retailer 15$771 SGD
Retailer 14$782 SGD
Retailer 18$890 SGD
Retailer 8$891 SGD
Retailer 19$1,040 SGD
Retailer 1$1,173 SGD
Retailer 17$1,381 SGD
Retailer 13$1,435 SGD
Retailer 5$1,437 SGD
Retailer 9$1,502 SGD
Retailer 2$1,579 SGD
Retailer 16$1,791 SGD
With Clarity$1,883 SGD

25 data points across 21 retailers

22 retailers$361 SGD to $1,883 SGD

A
Cheapest Retailer
-
$361 SGD
$282 USD
A
Retailer 2
-
$403 SGD
$315 USD
View
Final sale: no returns
A
Retailer 3
-
$418 SGD
$327 USD
View
Retailer 4
-
$448 SGD
$350 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$448 SGD
$350 USD
View
A
Retailer 6
-
$523 SGD
£322 GBP
View
A
Retailer 7
-
$646 SGD
$505 USD
View
A
Retailer 8
-
$738 SGD
$577 USD
View
A
Retailer 9
-
$771 SGD
ZAR 9,739 ZAR
View
A
Retailer 10
-
$782 SGD
£482 GBP
View
A
Retailer 11
-
$890 SGD
$696 USD
View
A
Retailer 12
-
$891 SGD
$697 USD
View
A
Retailer 13
-
$1,040 SGD
A$1,251 AUD
View
B+
Retailer 14
-
$1,173 SGD
$917 USD
View
B+
Retailer 15
-
$1,381 SGD
A$1,661 AUD
View
B+
Retailer 16
-
$1,435 SGD
View
B+
Retailer 17
-
$1,437 SGD
$1,124 USD
View
B+
Retailer 18
-
$1,502 SGD
$1,174 USD
View
B+
Retailer 19
-
$1,579 SGD
$1,235 USD
View
B+
Retailer 20
-
$1,720 SGD
$1,345 USD
View
B+
Retailer 21
-
$1,791 SGD
£1,103 GBP
View
Most Expensive
B
With Clarity
818682269 · Nov 1
$1,883 SGD
$1,472 USD
View
21 more retailers have this diamond
Prices start from $361 SGDSave up to $1,522 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
$361 SGD