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Radiant|Lab Grown|IGI

6.12ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG588359339

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

Certificate IGI LG588359339

Diamond specifications and retailer prices

From $1,911 NZD
$1,075 USD
As of November 3, 2026
Save $8,060 NZD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,971 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 6.12ct lab-grown radiant diamond

This 6.12ct 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 LG588359339 or 588359339. Listed at 16 retailers as of November 2, 2026, with prices from $1,911 to $9,971, a $8,060 spread on the same certified stone. Brilliant Earth lists it at $9,971. 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
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.4°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588359339
Dimensions12.62 × 9.01 × 6.16 mm
L/W Ratio1.40
Culet sizePointed
Top View
12.62 mm9.01 mm6.12 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588359339
Side View
Table 64.0%Crown 45.4°Girdle: MediumPavilion 35.3°Culet: NoneDepth 68.4%

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 3
Current: $9,971 NZD|Low: $1,525 NZD|High: $10,273 NZD|Avg: $4,004 NZD|-2.8%
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
November 3, 2026
Retailer 6$1,543 NZD
Retailer 9$1,582 NZD
Retailer 14$1,911 NZD
Retailer 2$2,453 NZD
Retailer 3$2,479 NZD
Retailer 5$2,586 NZD
Retailer 12$2,631 NZD
Retailer 13$2,966 NZD
Retailer 10$3,095 NZD
Retailer 17$3,805 NZD
Retailer 15$4,058 NZD
Retailer 16$5,410 NZD
Retailer 4$5,528 NZD
Retailer 7$5,746 NZD
Retailer 11$5,997 NZD
Retailer 8$7,234 NZD
Brilliant Earth$9,971 NZD

38 data points across 17 retailers

16 retailers$1,911 NZD to $9,971 NZD

Retailer 1
-
$1,482 NZD
$834 USD
Price last confirmed 36 days ago
Retailer 2
-
$1,559 NZD
$877 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$1,911 NZD
$1,075 USD
View
A
Retailer 4
-
$2,453 NZD
£1,087 GBP
View
A
Retailer 5
-
$2,479 NZD
$1,395 USD
View
B+
Retailer 6
-
$2,586 NZD
$1,455 USD
View
A
Retailer 7
-
$2,631 NZD
€1,410 EUR
View
A
Retailer 8
-
$2,966 NZD
A$2,567 AUD
View
A
Retailer 9
-
$3,095 NZD
ZAR 28,134 ZAR
View
B+
Retailer 10
-
$3,805 NZD
$2,141 USD
View
B+
Retailer 11
-
$4,058 NZD
$2,283 USD
View
B+
Retailer 12
-
$5,410 NZD
$3,044 USD
View
B+
Retailer 13
-
$5,528 NZD
$3,111 USD
View
Retailer 14
-
$5,746 NZD
$3,233 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$5,997 NZD
£2,657 GBP
View
Most Expensive
B
Brilliant Earth
7670544A · Nov 2
$9,971 NZD
$5,610 USD
View
15 more retailers have this diamond
Prices start from $1,911 NZDSave up to $8,060 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
6.12ct Radiant
$1,911 NZD