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Radiant|Lab Grown|IGI

1.21ct D VVS1 Radiant Lab Grown Diamond

GD • D/VVS1 • IGI LG623420555

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

Certificate IGI LG623420555

Diamond specifications and retailer prices

From $295 AUD
$207 USD
As of October 30, 2026
Save $2,538 AUD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,833 AUD at Do Amore Diamonds · As of October 31, 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 VVS1 clarity (very-very-slightly-included), with a standard cut grade and certified by IGI LG623420555 or 623420555. Listed at 21 retailers as of October 30, 2026, with prices from $295 to $2,833, a $2,538 spread on the same certified stone. Do Amore Diamonds lists it at $2,833. 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
Colour
VVS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623420555
Dimensions7.65 × 5.23 × 3.55 mm
L/W Ratio1.46
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
7.65 mm5.23 mm1.21 ctD / VVS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623420555
Side View
Table 64.0%Crown 41.9°Girdle: MediumPavilion 37.7°Culet: NoneDepth 67.9%

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: Oct 30
Current: $749 AUD|Low: $283 AUD|High: $2,733 AUD|Avg: $928 AUD|+3.8%
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
Retailer 17
October 31, 2026
Retailer 4$295 AUD
Retailer 14$329 AUD
Retailer 3$343 AUD
Retailer 2$366 AUD
Retailer 17$366 AUD
Retailer 7$493 AUD
Retailer 9$585 AUD
Retailer 11$694 AUD
Retailer 1$749 AUD
Retailer 12$985 AUD
Retailer 16$1,182 AUD
Retailer 5$1,300 AUD
Retailer 6$1,354 AUD
Retailer 15$1,523 AUD
Retailer 8$1,584 AUD
Retailer 13$1,622 AUD
Retailer 10$2,648 AUD

44 data points across 17 retailers

21 retailers$295 AUD to $2,833 AUD

A
Cheapest Retailer
-
$295 AUD
$207 USD
A
Retailer 2
-
$329 AUD
$231 USD
View
Final sale: no returns
A
Retailer 3
-
$343 AUD
$241 USD
View
A
Retailer 4
-
$366 AUD
$257 USD
View
A
Retailer 5
-
$366 AUD
$257 USD
View
B+
Retailer 6
-
$493 AUD
$346 USD
View
B+
Retailer 7
-
$585 AUD
$411 USD
View
B+
Retailer 8
-
$648 AUD
$455 USD
View
B+
Retailer 9
-
$694 AUD
ZAR 7,879 ZAR
View
B+
Retailer 10
-
$749 AUD
£414 GBP
View
B+
Retailer 11
-
$985 AUD
View
B
Retailer 12
-
$1,182 AUD
$830 USD
View
B
Retailer 13
-
$1,300 AUD
$913 USD
View
Retailer 14
-
$1,354 AUD
View
Price last confirmed 23 days ago
Retailer 15
-
$1,523 AUD
$1,070 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$1,544 AUD
$1,084 USD
View
B
Retailer 17
-
$1,584 AUD
£876 GBP
View
B
Retailer 18
-
$1,622 AUD
£897 GBP
View
B
Retailer 19
-
$1,733 AUD
$1,217 USD
View
B
Retailer 20
-
$2,648 AUD
$1,860 USD
View
Most Expensive
B
Do Amore Diamonds
27-EBF7213F3 · Oct 31
$2,833 AUD
$1,990 USD
View
20 more retailers have this diamond
Prices start from $295 AUDSave up to $2,538 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
$295 AUD