Radiant|Lab Grown|IGI

3.21ct J VS2 Radiant Lab Grown Diamond

EX • J/VS2 • IGI LG508125948

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

Certificate IGI LG508125948

Diamond specifications and retailer prices

From $2,787 AUD
$1,953 USD
As of November 2, 2026
Save $7,729 AUD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,713 AUD at Taylor and Hart · As of October 18, 2026
View at Taylor and Hart

About this 3.21ct lab-grown radiant diamond

This 3.21ct lab-grown radiant sits in the three to five carat band, graded J colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG508125948 or 508125948. Listed at 15 retailers as of November 2, 2026, with a 277% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.21
Carat
J
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508125948
Dimensions9.84 × 7.58 × 5.02 mm
L/W Ratio1.30
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
9.84 mm7.58 mm3.21 ctJ / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG508125948
Side View
Table 70.0%Crown 38.3°Girdle: Slightly ThickPavilion 34.7°Culet: NoneDepth 66.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $10,516 AUD|Low: $2,454 AUD|High: $21,104 AUD|Avg: $6,560 AUD
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
Taylor and Hart
November 1, 2026
Retailer 3$2,787 AUD
Retailer 9$3,068 AUD
Retailer 13$3,338 AUD
Retailer 14$3,436 AUD
Retailer 10$3,559 AUD
Retailer 2$3,733 AUD
Retailer 8$3,796 AUD
Retailer 4$5,028 AUD
Retailer 5$5,061 AUD
Retailer 12$5,398 AUD
Retailer 11$5,561 AUD
Retailer 7$5,578 AUD
Retailer 1$10,516 AUD
Taylor and Hart$13,713 AUD
Retailer 6$21,104 AUD

20 data points across 15 retailers

15 retailers$2,787 AUD to $10,516 AUD

B+
Cheapest Retailer
-
$2,787 AUD
$1,953 USD
B+
Retailer 2
-
$3,068 AUD
$2,150 USD
View
B
Retailer 3
-
$3,338 AUD
$2,339 USD
View
B
Retailer 4
-
$3,436 AUD
$2,408 USD
View
Final sale: no returns
B
Retailer 5
-
$3,559 AUD
$2,494 USD
View
Retailer 6
-
$3,559 AUD
$2,494 USD
View
Price last confirmed 23 days ago
B
Retailer 7
-
$3,733 AUD
$2,616 USD
View
B
Retailer 8
-
$3,796 AUD
$2,660 USD
View
B
Retailer 9
-
$5,028 AUD
CA$4,894 CAD
View
B
Retailer 10
-
$5,398 AUD
$3,783 USD
View
B
Retailer 11
-
$5,561 AUD
$3,897 USD
View
B
Retailer 12
-
$5,578 AUD
$3,909 USD
View
B
Retailer 13
-
$10,516 AUD
£5,803 GBP
View
Most Expensive
Taylor and Hart
7J9K5KU · Oct 18
$13,713 AUD
$9,611 USD
View
Price under review
13 more retailers have this diamond
Prices start from $2,787 AUDSave up to $7,729 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.

B+
3.21ct Radiant
$2,787 AUD