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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 $1,686 USD
As of November 1, 2026
Save $6,798 USD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,484 USD at With Clarity · As of November 2, 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 November 1, 2026, with prices from $1,686 to $8,484, a $6,798 spread on the same certified stone. With Clarity lists it at $8,484. 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
Color
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: Nov 1
Current: $2,467 USD|Low: $1,686 USD|High: $6,215 USD|Avg: $3,545 USD|-1.7%
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
November 3, 2026
Retailer 13$1,686 USD
Retailer 5$1,747 USD
Retailer 1$2,467 USD
Retailer 9$2,498 USD
Retailer 6$2,878 USD
Retailer 7$3,091 USD
Retailer 10$3,236 USD
Retailer 12$3,380 USD
Retailer 4$3,559 USD
Retailer 8$4,989 USD
Retailer 2$5,047 USD
Retailer 11$5,205 USD
Retailer 3$6,155 USD

37 data points across 13 retailers

22 retailers$1,686 USD to $8,484 USD

Retailer 1
-
$1,446 USD
Price last confirmed 31 days ago
Retailer 2
-
$1,638 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$1,686 USD
View
Final sale: no returns
Retailer 4
-
$1,747 USD
View
Price last confirmed 30 days ago
A
Retailer 5
-
$1,915 USD
View
B+
Retailer 6
-
$2,467 USD
£1,943 GBP
View
B+
Retailer 7
-
$2,498 USD
View
B+
Retailer 8
-
$2,878 USD
View
B+
Retailer 9
-
$3,091 USD
€2,944 EUR
View
B+
Retailer 10
-
$3,236 USD
A$4,979 AUD
View
Retailer 11
-
$3,274 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$3,380 USD
ZAR 54,608 ZAR
View
B+
Retailer 13
-
$3,559 USD
View
B
Retailer 14
-
$4,221 USD
£3,324 GBP
View
B
Retailer 15
-
$4,707 USD
View
B
Retailer 16
-
$4,989 USD
£3,928 GBP
View
B
Retailer 17
-
$5,047 USD
View
B
Retailer 18
-
$5,111 USD
View
B
Retailer 19
-
$5,205 USD
A$8,008 AUD
View
B
Retailer 20
-
$6,142 USD
View
Retailer 21
-
$6,155 USD
View
Price last confirmed 15 days ago
Most Expensive
B
With Clarity
821668217 · Nov 2
$8,484 USD
View
21 more retailers have this diamond
Prices start from $1,686 USDSave up to $6,798 USD

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
$1,686 USD