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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG806603879

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG806603879

Diamond specifications and retailer prices

From $272 SGD
As of November 4, 2026
Save $1,216 SGD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,271 SGD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG806603879 or 806603879. Listed at 22 retailers as of November 4, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG806603879
Dimensions10.74 × 5.42 × 3.55 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
10.74 mm5.42 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG806603879
Side View
Table 58.0%Crown 36.5°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 65.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $544 SGD|Low: $272 SGD|High: $1,488 SGD|Avg: $831 SGD|+3.4%
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
November 5, 2026
Retailer 12$272 SGD
Retailer 9$522 SGD
Retailer 3$530 SGD
Retailer 1$544 SGD
Retailer 14$565 SGD
Retailer 7$590 SGD
Retailer 4$617 SGD
Retailer 8$737 SGD
Retailer 15$945 SGD
Retailer 2$976 SGD
Retailer 13$1,013 SGD
Retailer 5$1,041 SGD
Retailer 11$1,379 SGD
Retailer 10$1,414 SGD
Retailer 6$1,488 SGD

43 data points across 15 retailers

22 retailers$272 SGD to $1,488 SGD

Retailer 1
-
$244 SGD
Price last confirmed 28 days ago
A
Retailer 2
-
$272 SGD
View
Final sale: no returns
Retailer 3
-
$284 SGD
View
Price last confirmed 37 days ago
Retailer 4
-
$299 SGD
View
Price last confirmed 41 days ago
Retailer 5
-
$303 SGD
View
Price last confirmed 33 days ago
Retailer 6
-
$303 SGD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$522 SGD
View
A
Retailer 8
-
$530 SGD
View
A
Retailer 9
-
$544 SGD
View
Retailer 10
-
$565 SGD
View
Price last confirmed 9 days ago
A
Retailer 11
-
$590 SGD
View
B+
Retailer 12
-
$617 SGD
View
B+
Retailer 13
-
$737 SGD
View
Retailer 14
-
$945 SGD
View
Price last confirmed 8 days ago
Retailer 15
-
$973 SGD
View
Price last confirmed 36 days ago
B
Retailer 16
-
$976 SGD
View
Retailer 17
-
$1,013 SGD
View
Price last confirmed 7 days ago
B
Retailer 18
-
$1,041 SGD
View
B
Retailer 19
-
$1,379 SGD
View
B
Retailer 20
-
$1,414 SGD
View
B
Retailer 21
-
$1,488 SGD
View
Most Expensive
Queensmith
LG806603879 · Oct 27
$2,271 SGD
£1,400 GBP
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $272 SGDSave up to $1,216 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
1.21ct Marquise
$272 SGD