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Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

EX • D/VVS1 • IGI LG731566581

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG731566581

Diamond specifications and retailer prices

From $287 AUD
As of November 4, 2026
Save $1,467 AUD (84%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $1,753 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG731566581 or 731566581. Listed at 29 retailers as of November 4, 2026, with prices from $287 to $1,753, a $1,467 spread on the same certified stone. Brilliant Earth lists it at $1,753. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731566581
Dimensions5.18 × 5.18 × 3.41 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.18 mm5.18 mm1.21 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731566581
Side View
Table 64.0%Crown 43.5°Girdle: Slightly ThickPavilion 34.2°Culet: NoneDepth 65.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: $1,753 AUD|Low: $287 AUD|High: $1,967 AUD|Avg: $945 AUD|-10.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 12$287 AUD
Retailer 5$319 AUD
Retailer 3$502 AUD
Retailer 9$603 AUD
Retailer 7$612 AUD
Retailer 2$644 AUD
Retailer 6$865 AUD
Retailer 11$1,145 AUD
Retailer 4$1,334 AUD
Retailer 10$1,525 AUD
Retailer 8$1,659 AUD
Brilliant Earth$1,753 AUD

42 data points across 12 retailers

29 retailers$287 AUD to $1,753 AUD

A
Cheapest Retailer
-
$287 AUD
Retailer 2
-
$287 AUD
View
Price last confirmed 27 days ago
Retailer 3
-
$287 AUD
View
Price last confirmed 35 days ago
A
Retailer 4
-
$319 AUD
View
Final sale: no returns
Retailer 5
-
$332 AUD
View
Price last confirmed 38 days ago
Retailer 6
-
$351 AUD
View
Price last confirmed 36 days ago
Retailer 7
-
$355 AUD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$419 AUD
View
B+
Retailer 9
-
$502 AUD
View
A
Retailer 10
-
$603 AUD
View
A
Retailer 11
-
$612 AUD
View
Retailer 12
-
$634 AUD
View
Price last confirmed 20 days ago
A
Retailer 13
-
$644 AUD
View
A
Retailer 14
-
$703 AUD
View
A
Retailer 15
-
$758 AUD
View
B+
Retailer 16
-
$827 AUD
View
B+
Retailer 17
-
$865 AUD
View
B+
Retailer 18
-
$1,142 AUD
View
Retailer 19
-
$1,142 AUD
View
Price last confirmed 35 days ago
Retailer 20
-
$1,142 AUD
View
Price last confirmed 25 days ago
B+
Retailer 21
-
$1,145 AUD
View
B+
Retailer 22
-
$1,209 AUD
View
B+
Retailer 23
-
$1,217 AUD
View
B
Retailer 24
-
$1,273 AUD
View
Retailer 25
-
$1,334 AUD
View
Price last confirmed 30 days ago
Retailer 26
-
$1,525 AUD
View
Price last confirmed 17 days ago
B
Retailer 27
-
$1,659 AUD
View
B
Retailer 28
-
$1,705 AUD
View
Most Expensive
B
Brilliant Earth
15998864A · Nov 4
$1,753 AUD
$1,230 USD
View
28 more retailers have this diamond
Prices start from $287 AUDSave up to $1,467 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 Radiant
$287 AUD