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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG809688217

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809688217

Diamond specifications and retailer prices

From $245 SGD
As of November 2, 2026
Save $1,248 SGD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,271 SGD at Queensmith · As of October 28, 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 LG809688217 or 809688217. Listed at 16 retailers as of November 1, 2026, with a 509% 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 angle32.2°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809688217
Dimensions11.72 × 5.59 × 3.17 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.72 mm5.59 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809688217
Side View
Table 60.0%Crown 32.2°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 56.7%

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: $2,271 SGD|Low: $273 SGD|High: $2,271 SGD|Avg: $816 SGD
Queensmith
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
November 3, 2026
Retailer 4$273 SGD
Retailer 13$305 SGD
Retailer 10$406 SGD
Retailer 3$411 SGD
Retailer 5$521 SGD
Retailer 11$525 SGD
Retailer 2$549 SGD
Retailer 6$590 SGD
Retailer 16$618 SGD
Retailer 9$742 SGD
Retailer 14$980 SGD
Retailer 15$984 SGD
Retailer 8$1,047 SGD
Retailer 12$1,424 SGD
Retailer 7$1,493 SGD
Queensmith$2,271 SGD

8 data points across 16 retailers

16 retailers$245 SGD to $1,493 SGD

A
Cheapest Retailer
-
$245 SGD
A
Retailer 2
-
$273 SGD
View
Final sale: no returns
A
Retailer 3
-
$305 SGD
View
A
Retailer 4
-
$406 SGD
View
B+
Retailer 5
-
$411 SGD
View
A
Retailer 6
-
$525 SGD
View
A
Retailer 7
-
$549 SGD
View
A
Retailer 8
-
$590 SGD
View
B+
Retailer 9
-
$618 SGD
View
B+
Retailer 10
-
$742 SGD
View
B+
Retailer 11
-
$980 SGD
View
B+
Retailer 12
-
$984 SGD
View
B
Retailer 13
-
$1,047 SGD
View
B
Retailer 14
-
$1,424 SGD
View
B
Retailer 15
-
$1,493 SGD
View
Most Expensive
Queensmith
LG809688217 · Oct 28
$2,271 SGD
£1,400 GBP
View
Price last confirmed 8 days ago
15 more retailers have this diamond
Prices start from $245 SGDSave up to $1,248 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
$245 SGD