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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 $282 AUD
As of November 4, 2026
Save $1,408 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,535 AUD 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
Colour
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

How it works →
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: $633 AUD|Low: $274 AUD|High: $1,749 AUD|Avg: $771 AUD|+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 4, 2026
Retailer 6$282 AUD
Retailer 15$315 AUD
Retailer 2$349 AUD
Retailer 13$349 AUD
Retailer 5$473 AUD
Retailer 11$603 AUD
Retailer 12$612 AUD
Retailer 1$633 AUD
Retailer 8$663 AUD
Retailer 3$698 AUD
Retailer 10$852 AUD
Retailer 14$1,062 AUD
Retailer 16$1,129 AUD
Retailer 7$1,200 AUD
Retailer 9$1,634 AUD
Retailer 4$1,691 AUD

42 data points across 16 retailers

22 retailers$282 AUD to $1,691 AUD

Retailer 1
-
$274 AUD
Price last confirmed 35 days ago
Retailer 2
-
$282 AUD
View
Price last confirmed 16 days ago
A
Retailer 3
-
$282 AUD
View
A
Retailer 4
-
$315 AUD
View
Final sale: no returns
Retailer 5
-
$318 AUD
View
Price last confirmed 36 days ago
Retailer 6
-
$336 AUD
View
Price last confirmed 36 days ago
Retailer 7
-
$349 AUD
View
Price last confirmed 16 days ago
Retailer 8
-
$349 AUD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
$473 AUD
View
A
Retailer 10
-
$603 AUD
View
Retailer 11
-
$612 AUD
View
Price last confirmed 8 days ago
A
Retailer 12
-
$633 AUD
View
A
Retailer 13
-
$663 AUD
View
A
Retailer 14
-
$698 AUD
View
B+
Retailer 15
-
$852 AUD
View
Retailer 16
-
$1,062 AUD
View
Price last confirmed 7 days ago
Retailer 17
-
$1,093 AUD
View
Price last confirmed 35 days ago
B
Retailer 18
-
$1,129 AUD
View
B
Retailer 19
-
$1,200 AUD
View
B
Retailer 20
-
$1,634 AUD
View
B
Retailer 21
-
$1,691 AUD
View
Most Expensive
Queensmith
LG809686335 · Oct 27
$2,535 AUD
£1,400 GBP
View
Price last confirmed 8 days ago
21 more retailers have this diamond
Prices start from $282 AUDSave up to $1,408 AUD

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
$282 AUD