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Radiant|Lab Grown|IGI

6.12ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG821668217

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

Certificate IGI LG821668217

Diamond specifications and retailer prices

From $2,400 AUD
$1,686 USD
As of October 31, 2026
Save $9,678 AUD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $12,078 AUD at With Clarity · As of October 31, 2026
View at With Clarity

About this 6.12ct lab-grown radiant diamond

This 6.12ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821668217 or 821668217. Listed at 22 retailers as of October 31, 2026, with prices from $2,400 to $12,078, a $9,678 spread on the same certified stone. With Clarity lists it at $12,078. 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

6.12
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821668217
Dimensions8.34 × 12.33 × 6.45 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.34 mm12.33 mm6.12 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821668217
Side View
Table 60.0%Crown 48°Girdle: Very ThickPavilion 38.8°Culet: NoneDepth 77.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $3,556 AUD|Low: $2,400 AUD|High: $8,848 AUD|Avg: $5,056 AUD|-8.4%
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
November 1, 2026
Retailer 11$2,400 AUD
Retailer 5$2,487 AUD
Retailer 6$3,512 AUD
Retailer 1$3,556 AUD
Retailer 4$4,050 AUD
Retailer 9$4,402 AUD
Retailer 7$4,607 AUD
Retailer 10$4,812 AUD
Retailer 3$5,067 AUD
Retailer 2$7,140 AUD
Retailer 12$7,185 AUD
Retailer 8$7,410 AUD
Retailer 13$8,762 AUD

37 data points across 13 retailers

22 retailers$2,400 AUD to $12,078 AUD

Retailer 1
-
$2,059 AUD
$1,446 USD
Price last confirmed 30 days ago
Retailer 2
-
$2,332 AUD
$1,638 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
$2,400 AUD
$1,686 USD
View
Final sale: no returns
Retailer 4
-
$2,487 AUD
$1,747 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$2,726 AUD
$1,915 USD
View
B+
Retailer 6
-
$3,512 AUD
£1,943 GBP
View
B+
Retailer 7
-
$3,556 AUD
$2,498 USD
View
B+
Retailer 8
-
$4,050 AUD
$2,845 USD
View
B+
Retailer 9
-
$4,402 AUD
€2,945 EUR
View
B+
Retailer 10
-
$4,607 AUD
View
Retailer 11
-
$4,661 AUD
$3,274 USD
View
Price last confirmed 31 days ago
B+
Retailer 12
-
$4,812 AUD
ZAR 54,608 ZAR
View
B+
Retailer 13
-
$5,067 AUD
$3,559 USD
View
B
Retailer 14
-
$6,010 AUD
£3,324 GBP
View
B
Retailer 15
-
$6,701 AUD
$4,707 USD
View
B
Retailer 16
-
$7,140 AUD
£3,949 GBP
View
B
Retailer 17
-
$7,185 AUD
$5,047 USD
View
B
Retailer 18
-
$7,277 AUD
$5,111 USD
View
B
Retailer 19
-
$7,410 AUD
View
B
Retailer 20
-
$8,744 AUD
$6,142 USD
View
Retailer 21
-
$8,762 AUD
$6,155 USD
View
Price last confirmed 13 days ago
Most Expensive
B
With Clarity
821668217 · Oct 31
$12,078 AUD
$8,484 USD
View
21 more retailers have this diamond
Prices start from $2,400 AUDSave up to $9,678 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
6.12ct Radiant
$2,400 AUD