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 $297 CAD
As of November 4, 2026
Save $1,327 CAD (82%) 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 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
Color
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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $594 CAD|Low: $297 CAD|High: $1,623 CAD|Avg: $907 CAD|+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$297 CAD
Retailer 9$570 CAD
Retailer 3$578 CAD
Retailer 1$594 CAD
Retailer 14$616 CAD
Retailer 7$644 CAD
Retailer 4$673 CAD
Retailer 8$804 CAD
Retailer 15$1,031 CAD
Retailer 2$1,065 CAD
Retailer 13$1,105 CAD
Retailer 5$1,136 CAD
Retailer 11$1,505 CAD
Retailer 10$1,543 CAD
Retailer 6$1,623 CAD

43 data points across 15 retailers

22 retailers$297 CAD to $1,623 CAD

Retailer 1
-
$266 CAD
Price last confirmed 28 days ago
A
Retailer 2
-
$297 CAD
View
Final sale: no returns
Retailer 3
-
$309 CAD
View
Price last confirmed 37 days ago
Retailer 4
-
$326 CAD
View
Price last confirmed 41 days ago
Retailer 5
-
$330 CAD
View
Price last confirmed 33 days ago
Retailer 6
-
$330 CAD
View
Price last confirmed 24 days ago
A
Retailer 7
-
$570 CAD
View
A
Retailer 8
-
$578 CAD
View
A
Retailer 9
-
$594 CAD
View
Retailer 10
-
$616 CAD
View
Price last confirmed 9 days ago
A
Retailer 11
-
$644 CAD
View
B+
Retailer 12
-
$673 CAD
View
B+
Retailer 13
-
$804 CAD
View
Retailer 14
-
$1,031 CAD
View
Price last confirmed 8 days ago
Retailer 15
-
$1,062 CAD
View
Price last confirmed 36 days ago
B
Retailer 16
-
$1,065 CAD
View
Retailer 17
-
$1,105 CAD
View
Price last confirmed 7 days ago
B
Retailer 18
-
$1,136 CAD
View
B
Retailer 19
-
$1,505 CAD
View
B
Retailer 20
-
$1,543 CAD
View
B
Retailer 21
-
$1,623 CAD
View
Most Expensive
Queensmith
LG806603879 · Oct 27
$2,478 CAD
£1,400 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $297 CADSave up to $1,327 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
$297 CAD