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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG809686335

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG809686335

Diamond specifications and retailer prices

From $276 CAD
As of November 4, 2026
Save $1,377 CAD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,478 CAD 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 top-tier cut grade and certified by IGI LG809686335 or 809686335. Listed at 22 retailers as of November 4, 2026, with a 499% 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

1.21
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809686335
Dimensions11.12 × 5.49 × 3.29 mm
L/W Ratio2.03
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.12 mm5.49 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809686335
Side View
Table 58.0%Crown 31.9°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 59.9%

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 4
Current: $619 CAD|Low: $268 CAD|High: $1,710 CAD|Avg: $758 CAD|+5.0%
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
Retailer 16
November 5, 2026
Retailer 6$276 CAD
Retailer 15$308 CAD
Retailer 2$341 CAD
Retailer 13$341 CAD
Retailer 5$463 CAD
Retailer 11$589 CAD
Retailer 12$598 CAD
Retailer 1$619 CAD
Retailer 8$648 CAD
Retailer 3$683 CAD
Retailer 10$833 CAD
Retailer 14$1,038 CAD
Retailer 16$1,104 CAD
Retailer 7$1,173 CAD
Retailer 9$1,597 CAD
Retailer 4$1,653 CAD

42 data points across 16 retailers

22 retailers$276 CAD to $1,653 CAD

Retailer 1
-
$268 CAD
Price last confirmed 36 days ago
Retailer 2
-
$276 CAD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$276 CAD
View
A
Retailer 4
-
$308 CAD
View
Final sale: no returns
Retailer 5
-
$311 CAD
View
Price last confirmed 37 days ago
Retailer 6
-
$329 CAD
View
Price last confirmed 37 days ago
Retailer 7
-
$341 CAD
View
Price last confirmed 17 days ago
Retailer 8
-
$341 CAD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$463 CAD
View
A
Retailer 10
-
$589 CAD
View
Retailer 11
-
$598 CAD
View
Price last confirmed 9 days ago
A
Retailer 12
-
$619 CAD
View
A
Retailer 13
-
$648 CAD
View
A
Retailer 14
-
$683 CAD
View
B+
Retailer 15
-
$833 CAD
View
Retailer 16
-
$1,038 CAD
View
Price last confirmed 8 days ago
Retailer 17
-
$1,069 CAD
View
Price last confirmed 36 days ago
B
Retailer 18
-
$1,104 CAD
View
B
Retailer 19
-
$1,173 CAD
View
B
Retailer 20
-
$1,597 CAD
View
B
Retailer 21
-
$1,653 CAD
View
Most Expensive
Queensmith
LG809686335 · Oct 27
$2,478 CAD
£1,400 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $276 CADSave up to $1,377 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
$276 CAD