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Radiant|Lab Grown|IGI

6.67ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG620435584

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

Certificate IGI LG620435584

Diamond specifications and retailer prices

From $1,604 NZD
$904 USD
As of October 30, 2026
Save $8,651 NZD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $10,255 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.67ct lab-grown radiant diamond

This 6.67ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620435584 or 620435584. Listed at 23 retailers as of October 30, 2026, with prices from $1,604 to $10,255, a $8,651 spread on the same certified stone. Brilliant Earth lists it at $10,255. 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

6.67
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.3°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620435584
Dimensions13.58 × 9.16 × 5.97 mm
L/W Ratio1.48
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
13.58 mm9.16 mm6.67 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620435584
Side View
Table 66.0%Crown 46.3°Girdle: MED-STKPavilion 32.5°Culet: NoneDepth 65.2%

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 30
Current: $10,255 NZD|Low: $1,540 NZD|High: $10,255 NZD|Avg: $3,600 NZD
Brilliant Earth
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
Retailer 18
November 1, 2026
Retailer 5$1,604 NZD
Retailer 9$1,744 NZD
Retailer 6$1,796 NZD
Retailer 7$1,859 NZD
Retailer 10$1,859 NZD
Retailer 2$1,992 NZD
Retailer 3$2,174 NZD
Retailer 17$2,661 NZD
Retailer 12$2,824 NZD
Retailer 11$2,840 NZD
Retailer 13$3,447 NZD
Retailer 16$3,600 NZD
Retailer 14$3,676 NZD
Retailer 8$5,231 NZD
Retailer 4$5,819 NZD
Retailer 18$5,820 NZD
Retailer 15$6,343 NZD
Brilliant Earth$10,255 NZD

38 data points across 18 retailers

23 retailers$1,604 NZD to $10,255 NZD

A
Cheapest Retailer
-
$1,604 NZD
$904 USD
A
Retailer 2
-
$1,744 NZD
$983 USD
View
A
Retailer 3
-
$1,796 NZD
$1,012 USD
View
Final sale: no returns
A
Retailer 4
-
$1,859 NZD
$1,048 USD
View
Retailer 5
-
$1,859 NZD
$1,048 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$1,992 NZD
£884 GBP
View
A
Retailer 7
-
$2,174 NZD
$1,225 USD
View
B+
Retailer 8
-
$2,661 NZD
$1,500 USD
View
A
Retailer 9
-
$2,734 NZD
$1,541 USD
View
A
Retailer 10
-
$2,824 NZD
€1,516 EUR
View
A
Retailer 11
-
$2,840 NZD
£1,260 GBP
View
A
Retailer 12
-
$3,447 NZD
A$2,989 AUD
View
A
Retailer 13
-
$3,600 NZD
ZAR 32,774 ZAR
View
A
Retailer 14
-
$3,676 NZD
$2,072 USD
View
B+
Retailer 15
-
$4,530 NZD
$2,553 USD
View
B+
Retailer 16
-
$4,796 NZD
$2,703 USD
View
B+
Retailer 17
-
$5,138 NZD
£2,280 GBP
View
B+
Retailer 18
-
$5,231 NZD
$2,948 USD
View
B+
Retailer 19
-
$5,819 NZD
$3,280 USD
View
B+
Retailer 20
-
$5,820 NZD
$3,280 USD
View
B+
Retailer 21
-
$6,343 NZD
£2,815 GBP
View
B+
Retailer 22
-
$6,464 NZD
$3,643 USD
View
Most Expensive
B
Brilliant Earth
10794599A · Oct 31
$10,255 NZD
$5,780 USD
View
22 more retailers have this diamond
Prices start from $1,604 NZDSave up to $8,651 NZD

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
6.67ct Radiant
$1,604 NZD