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Marquise|Lab Grown|IGI

1.60ct G VVS1 Marquise Lab Grown Diamond

ID • G/VVS1 • IGI LG818663631

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818663631

Diamond specifications and retailer prices

From $399 SGD
$312 USD
As of November 1, 2026
Save $1,641 SGD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,814 SGD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.6ct lab-grown marquise diamond

This 1.6ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818663631 or 818663631. Listed at 22 retailers as of November 1, 2026, with a 411% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
G
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818663631
Dimensions11.83 × 6.08 × 3.96 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.83 mm6.08 mm1.60 ctG / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818663631
Side View
Table 61.0%Crown 33.6°Girdle: MED-THKPavilion 42.3°Culet: NoneDepth 65.1%

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 1
Current: $774 SGD|Low: $399 SGD|High: $1,850 SGD|Avg: $979 SGD|+2.3%
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
November 2, 2026
Retailer 5$399 SGD
Retailer 14$473 SGD
Retailer 11$595 SGD
Retailer 9$659 SGD
Retailer 13$697 SGD
Retailer 7$763 SGD
Retailer 1$774 SGD
Retailer 4$920 SGD
Retailer 2$936 SGD
Retailer 12$1,030 SGD
Retailer 10$1,064 SGD
Retailer 3$1,703 SGD
Retailer 8$1,775 SGD
Retailer 6$1,850 SGD

42 data points across 14 retailers

22 retailers$399 SGD to $2,040 SGD

Retailer 1
-
$357 SGD
$279 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$399 SGD
$312 USD
View
Final sale: no returns
Retailer 3
-
$414 SGD
$324 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$442 SGD
$346 USD
View
Price last confirmed 30 days ago
Retailer 5
-
$442 SGD
$346 USD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$595 SGD
$465 USD
View
A
Retailer 7
-
$659 SGD
$515 USD
View
A
Retailer 8
-
$697 SGD
€519 EUR
View
A
Retailer 9
-
$763 SGD
ZAR 9,644 ZAR
View
A
Retailer 10
-
$774 SGD
£477 GBP
View
A
Retailer 11
-
$920 SGD
$719 USD
View
Retailer 12
-
$936 SGD
$732 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$1,030 SGD
A$1,239 AUD
View
B+
Retailer 14
-
$1,064 SGD
$832 USD
View
Retailer 15
-
$1,423 SGD
$1,113 USD
View
Price last confirmed 33 days ago
B+
Retailer 16
-
$1,488 SGD
$1,164 USD
View
B
Retailer 17
-
$1,703 SGD
$1,332 USD
View
B
Retailer 18
-
$1,775 SGD
£1,093 GBP
View
B
Retailer 19
-
$1,844 SGD
$1,442 USD
View
B
Retailer 20
-
$1,850 SGD
$1,446 USD
View
B
Retailer 21
-
$2,040 SGD
$1,595 USD
View
Most Expensive
Brilliant Earth
21035738A · Sep 28
$2,814 SGD
$2,200 USD
View
Price last confirmed 35 days ago
21 more retailers have this diamond
Prices start from $399 SGDSave up to $1,641 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
1.60ct Marquise
$399 SGD