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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 $268 CAD
As of November 2, 2026
Save $1,361 CAD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,478 CAD 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
Color
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: $2,478 CAD|Low: $298 CAD|High: $2,478 CAD|Avg: $890 CAD
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$298 CAD
Retailer 13$333 CAD
Retailer 10$443 CAD
Retailer 3$449 CAD
Retailer 5$569 CAD
Retailer 11$573 CAD
Retailer 2$599 CAD
Retailer 6$644 CAD
Retailer 16$674 CAD
Retailer 9$810 CAD
Retailer 14$1,069 CAD
Retailer 15$1,073 CAD
Retailer 8$1,143 CAD
Retailer 12$1,554 CAD
Retailer 7$1,629 CAD
Queensmith$2,478 CAD

8 data points across 16 retailers

16 retailers$268 CAD to $1,629 CAD

A
Cheapest Retailer
-
$268 CAD
A
Retailer 2
-
$298 CAD
View
Final sale: no returns
A
Retailer 3
-
$333 CAD
View
A
Retailer 4
-
$443 CAD
View
B+
Retailer 5
-
$449 CAD
View
A
Retailer 6
-
$573 CAD
View
A
Retailer 7
-
$599 CAD
View
A
Retailer 8
-
$644 CAD
View
B+
Retailer 9
-
$674 CAD
View
B+
Retailer 10
-
$810 CAD
View
B+
Retailer 11
-
$1,069 CAD
View
B+
Retailer 12
-
$1,073 CAD
View
B
Retailer 13
-
$1,143 CAD
View
B
Retailer 14
-
$1,554 CAD
View
B
Retailer 15
-
$1,629 CAD
View
Most Expensive
Queensmith
LG809688217 · Oct 28
$2,478 CAD
£1,400 GBP
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from $268 CADSave up to $1,361 CAD

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
$268 CAD