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Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

EX • D/VS1 • IGI LG816674414

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG816674414

Diamond specifications and retailer prices

From $298 AUD
As of November 4, 2026
Save $1,246 AUD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,544 AUD at MOH London · As of November 2, 2026
View at MOH London

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 LG816674414 or 816674414. Listed at 16 retailers as of November 2, 2026, with prices from $298 to $1,544, a $1,246 spread on the same certified stone. MOH London lists it at $1,544. 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 angle34.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816674414
Dimensions10.39 × 5.55 × 3.55 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.39 mm5.55 mm1.21 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816674414
Side View
Table 60.0%Crown 34.4°Girdle: STK-THKPavilion 41°Culet: NoneDepth 64.0%

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: $1,544 AUD|Low: $298 AUD|High: $1,626 AUD|Avg: $861 AUD|-4.8%
MOH London
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 4, 2026
Retailer 11$298 AUD
Retailer 2$440 AUD
Retailer 13$445 AUD
Retailer 12$570 AUD
Retailer 6$590 AUD
Retailer 8$593 AUD
Retailer 3$657 AUD
Retailer 15$681 AUD
Retailer 10$805 AUD
Retailer 14$1,062 AUD
Retailer 9$1,066 AUD
Retailer 7$1,069 AUD
Retailer 5$1,110 AUD
Retailer 4$1,139 AUD
MOH London$1,544 AUD

40 data points across 15 retailers

16 retailers$298 AUD to $1,544 AUD

A
Cheapest Retailer
-
$298 AUD
Final sale: no returns
A
Retailer 2
-
$440 AUD
View
B+
Retailer 3
-
$445 AUD
View
A
Retailer 4
-
$570 AUD
View
Retailer 5
-
$590 AUD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$593 AUD
View
A
Retailer 7
-
$657 AUD
View
A
Retailer 8
-
$681 AUD
View
B+
Retailer 9
-
$805 AUD
View
B+
Retailer 10
-
$1,062 AUD
View
B+
Retailer 11
-
$1,066 AUD
View
Retailer 12
-
$1,069 AUD
View
Price last confirmed 28 days ago
B+
Retailer 13
-
$1,110 AUD
View
B
Retailer 14
-
$1,139 AUD
View
B
Retailer 15
-
$1,411 AUD
View
Most Expensive
B
MOH London
LG816674414 · Nov 2
$1,544 AUD
£853 GBP
View
15 more retailers have this diamond
Prices start from $298 AUDSave up to $1,246 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
$298 AUD