Marquise|Lab Grown|IGI

1.77ct G VS1 Marquise Lab Grown Diamond

ID • G/VS1 • IGI LG818663851

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818663851

Diamond specifications and retailer prices

From $1,982 SGD
$1,550 USD
As of November 2, 2026
14 retailers carry this diamond
Most expensive: $1,982 SGD at Brilliant Earth
View at Brilliant Earth

About this 1.77ct lab-grown marquise diamond

This 1.77ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818663851 or 818663851. Listed at 14 retailers as of November 2, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.77
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663851
Dimensions13.07 × 6.36 × 3.77 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.07 mm6.36 mm1.77 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663851
Side View
Table 61.0%Crown 33.4°Girdle: THN-STKPavilion 39.8°Culet: NoneDepth 59.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $1,982 SGD|Low: $375 SGD|High: $2,021 SGD|Avg: $1,129 SGD
Brilliant Earth
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
October 10, 2026
Retailer 14$384 SGD
Retailer 12$707 SGD
Retailer 9$727 SGD
Retailer 8$795 SGD
Retailer 11$824 SGD
Retailer 2$978 SGD
Retailer 6$978 SGD
Retailer 7$1,194 SGD
Retailer 3$1,368 SGD
Retailer 4$1,434 SGD
Retailer 13$1,599 SGD
Retailer 5$1,623 SGD
Retailer 10$1,722 SGD
Brilliant Earth$1,982 SGD

20 data points across 14 retailers

14 retailers

Retailer 1
-
$343 SGD
$268 USD
Price last confirmed 26 days ago
Retailer 2
-
$394 SGD
$308 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$426 SGD
$333 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$426 SGD
$333 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$707 SGD
$553 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$727 SGD
ZAR 9,187 ZAR
View
Price last confirmed 25 days ago
Retailer 7
-
$1,194 SGD
$934 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$1,368 SGD
$1,070 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$1,368 SGD
View
Price last confirmed 26 days ago
Retailer 10
-
$1,434 SGD
$1,121 USD
View
Price last confirmed 25 days ago
Retailer 11
-
$1,599 SGD
$1,250 USD
View
Price last confirmed 27 days ago
Retailer 12
-
$1,623 SGD
$1,269 USD
View
Price last confirmed 27 days ago
Retailer 13
-
$1,722 SGD
£1,060 GBP
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
21492510A · Nov 2
$1,982 SGD
$1,550 USD
View
13 more retailers have this diamond

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.

B
1.77ct Marquise
$1,982 SGD