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Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG620456864

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

Certificate IGI LG620456864

Diamond specifications and retailer prices

From $329 AUD
As of November 4, 2026
Save $2,821 AUD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,364 AUD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620456864 or 620456864. Listed at 19 retailers as of November 4, 2026, with a 857% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.1°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620456864
Dimensions7.56 × 5.22 × 3.50 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.56 mm5.22 mm1.21 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620456864
Side View
Table 66.0%Crown 46.1°Girdle: MediumPavilion 35.9°Culet: NoneDepth 67.0%

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: $850 AUD|Low: $315 AUD|High: $1,825 AUD|Avg: $831 AUD|+3.7%
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
November 5, 2026
Retailer 13$329 AUD
Retailer 6$368 AUD
Retailer 4$381 AUD
Retailer 2$408 AUD
Retailer 14$408 AUD
Retailer 12$546 AUD
Retailer 9$775 AUD
Retailer 1$850 AUD
Retailer 5$857 AUD
Retailer 10$1,091 AUD
Retailer 8$1,100 AUD
Retailer 11$1,314 AUD
Retailer 3$1,445 AUD
Retailer 7$1,798 AUD

44 data points across 14 retailers

19 retailers$329 AUD to $3,150 AUD

A
Cheapest Retailer
-
$329 AUD
A
Retailer 2
-
$368 AUD
View
Final sale: no returns
A
Retailer 3
-
$381 AUD
View
Retailer 4
-
$408 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$408 AUD
View
A
Retailer 6
-
$525 AUD
View
A
Retailer 7
-
$546 AUD
View
A
Retailer 8
-
$775 AUD
View
B+
Retailer 9
-
$850 AUD
View
B+
Retailer 10
-
$857 AUD
View
Retailer 11
-
$1,091 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$1,100 AUD
View
B
Retailer 13
-
$1,314 AUD
View
B
Retailer 14
-
$1,445 AUD
View
B
Retailer 15
-
$1,688 AUD
View
B
Retailer 16
-
$1,798 AUD
View
B
Retailer 17
-
$1,837 AUD
View
Retailer 18
-
$3,150 AUD
View
Most Expensive
Do Amore Diamonds
23-620456864 · Nov 4
$3,364 AUD
$2,360 USD
View
Price under review
18 more retailers have this diamond
Prices start from $329 AUDSave up to $2,821 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
$329 AUD