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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG847640520

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG847640520

Diamond specifications and retailer prices

From $341 SGD
$267 USD
As of November 2, 2026
Save $1,487 SGD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,829 SGD at With Clarity · As of November 3, 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 LG847640520 or 847640520. Listed at 12 retailers as of November 2, 2026, with prices from $341 to $1,829, a $1,487 spread on the same certified stone. With Clarity lists it at $1,829. 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 angle36°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847640520
Dimensions12.53 × 6.32 × 3.95 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.53 mm6.32 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847640520
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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: $1,697 SGD|Low: $341 SGD|High: $1,829 SGD|Avg: $1,044 SGD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
With Clarity
November 2, 2026
Retailer 11$341 SGD
Retailer 9$396 SGD
Retailer 4$495 SGD
Retailer 6$627 SGD
Retailer 2$697 SGD
Retailer 3$868 SGD
Retailer 10$985 SGD
Retailer 5$1,302 SGD
Retailer 7$1,362 SGD
Retailer 8$1,554 SGD
Retailer 1$1,697 SGD
With Clarity$1,829 SGD

10 data points across 12 retailers

12 retailers$341 SGD to $1,829 SGD

A
Cheapest Retailer
-
$341 SGD
$267 USD
A
Retailer 2
-
$396 SGD
$310 USD
View
A
Retailer 3
-
$495 SGD
£305 GBP
View
A
Retailer 4
-
$627 SGD
$490 USD
View
Retailer 5
-
$697 SGD
€519 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
$868 SGD
$679 USD
View
A
Retailer 7
-
$985 SGD
A$1,185 AUD
View
B+
Retailer 8
-
$1,302 SGD
$1,018 USD
View
B+
Retailer 9
-
$1,362 SGD
$1,065 USD
View
B
Retailer 10
-
$1,554 SGD
$1,215 USD
View
B+
Retailer 11
-
$1,697 SGD
£1,045 GBP
View
Most Expensive
B
With Clarity
847640520 · Nov 3
$1,829 SGD
$1,430 USD
View
11 more retailers have this diamond
Prices start from $341 SGDSave up to $1,487 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
$341 SGD