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Radiant|Lab Grown|IGI

1.21ct D VS1 Radiant Lab Grown Diamond

VG • D/VS1 • IGI LG831692380

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

Certificate IGI LG831692380

Diamond specifications and retailer prices

From $301 AUD
As of November 2, 2026
Save $1,449 AUD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,749 AUD at Reve Diamonds · As of November 1, 2026
View at Reve 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 very-good cut grade and certified by IGI LG831692380 or 831692380. Listed at 20 retailers as of November 1, 2026, with prices from $301 to $1,749, a $1,449 spread on the same certified stone. Reve Diamonds lists it at $1,749. 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
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831692380
Dimensions8.07 × 5.21 × 3.46 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.07 mm5.21 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831692380
Side View
Table 64.0%Crown 35.5°Girdle: MED-STKPavilion 35.3°Culet: NoneDepth 66.4%

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 2
Current: $999 AUD|Low: $301 AUD|High: $1,749 AUD|Avg: $891 AUD|-16.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Reve Diamonds
November 3, 2026
Retailer 5$301 AUD
Retailer 4$335 AUD
Retailer 19$348 AUD
Retailer 7$372 AUD
Retailer 14$496 AUD
Retailer 18$626 AUD
Retailer 6$639 AUD
Retailer 15$641 AUD
Retailer 9$669 AUD
Retailer 12$687 AUD
Retailer 2$718 AUD
Retailer 13$909 AUD
Retailer 1$999 AUD
Retailer 10$1,029 AUD
Retailer 17$1,196 AUD
Retailer 8$1,209 AUD
Retailer 11$1,272 AUD
Retailer 16$1,491 AUD
Retailer 3$1,568 AUD
Reve Diamonds$1,749 AUD

8 data points across 20 retailers

20 retailers$301 AUD to $1,749 AUD

A
Cheapest Retailer
-
$301 AUD
A
Retailer 2
-
$335 AUD
View
Final sale: no returns
A
Retailer 3
-
$348 AUD
View
A
Retailer 4
-
$372 AUD
View
A
Retailer 5
-
$496 AUD
View
A
Retailer 6
-
$626 AUD
View
A
Retailer 7
-
$639 AUD
View
A
Retailer 8
-
$641 AUD
View
B+
Retailer 9
-
$669 AUD
View
A
Retailer 10
-
$687 AUD
View
B+
Retailer 11
-
$718 AUD
View
B+
Retailer 12
-
$909 AUD
View
B+
Retailer 13
-
$999 AUD
View
Retailer 14
-
$1,029 AUD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$1,196 AUD
View
B
Retailer 16
-
$1,209 AUD
View
B
Retailer 17
-
$1,272 AUD
View
B
Retailer 18
-
$1,491 AUD
View
B
Retailer 19
-
$1,568 AUD
View
Most Expensive
B
Reve Diamonds
6D92BDA8B · Nov 1
$1,749 AUD
$1,227 USD
View
19 more retailers have this diamond
Prices start from $301 AUDSave up to $1,449 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
$301 AUD