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Radiant|Lab Grown|IGI

6.18ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG627406053

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

Certificate IGI LG627406053

Diamond specifications and retailer prices

From $1,393 NZD
$784 USD
As of November 2, 2026
Save $8,666 NZD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,060 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.18ct lab-grown radiant diamond

This 6.18ct 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 LG627406053 or 627406053. Listed at 21 retailers as of October 31, 2026, with prices from $1,393 to $10,060, a $8,666 spread on the same certified stone. Brilliant Earth lists it at $10,060. 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

6.18
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627406053
Dimensions13.05 × 9.03 × 6.09 mm
L/W Ratio1.45
Culet sizePointed
Top View
13.05 mm9.03 mm6.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627406053
Side View
Table 64.0%Crown 33.7°Girdle: MediumPavilion 35.3°Culet: NoneDepth 67.4%

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 2
Current: $10,060 NZD|Low: $1,376 NZD|High: $10,379 NZD|Avg: $3,628 NZD|-2.9%
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
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 4$1,393 NZD
Retailer 21$1,516 NZD
Retailer 9$1,557 NZD
Retailer 6$1,616 NZD
Retailer 12$1,616 NZD
Retailer 2$1,730 NZD
Retailer 20$1,928 NZD
Retailer 13$2,477 NZD
Retailer 7$2,499 NZD
Retailer 10$2,609 NZD
Retailer 17$2,656 NZD
Retailer 18$2,993 NZD
Retailer 19$3,126 NZD
Retailer 3$3,843 NZD
Retailer 8$4,132 NZD
Retailer 22$4,543 NZD
Retailer 11$5,178 NZD
Retailer 14$5,460 NZD
Retailer 15$5,583 NZD
Retailer 16$6,056 NZD
Retailer 5$7,269 NZD
Brilliant Earth$10,060 NZD

32 data points across 22 retailers

21 retailers$1,393 NZD to $10,060 NZD

A
Cheapest Retailer
-
$1,393 NZD
$784 USD
A
Retailer 2
-
$1,516 NZD
$853 USD
View
A
Retailer 3
-
$1,616 NZD
$909 USD
View
Retailer 4
-
$1,616 NZD
$909 USD
View
Price last confirmed 23 days ago
A
Retailer 5
-
$1,730 NZD
£766 GBP
View
A
Retailer 6
-
$1,928 NZD
$1,085 USD
View
A
Retailer 7
-
$2,477 NZD
£1,097 GBP
View
A
Retailer 8
-
$2,499 NZD
$1,406 USD
View
B+
Retailer 9
-
$2,609 NZD
$1,468 USD
View
A
Retailer 10
-
$2,656 NZD
€1,423 EUR
View
A
Retailer 11
-
$2,993 NZD
A$2,591 AUD
View
A
Retailer 12
-
$3,126 NZD
ZAR 28,411 ZAR
View
B+
Retailer 13
-
$3,843 NZD
$2,162 USD
View
B+
Retailer 14
-
$4,132 NZD
$2,325 USD
View
B+
Retailer 15
-
$4,543 NZD
$2,556 USD
View
Retailer 16
-
$5,178 NZD
$2,914 USD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$5,460 NZD
$3,072 USD
View
B+
Retailer 18
-
$5,583 NZD
$3,141 USD
View
B+
Retailer 19
-
$6,056 NZD
£2,683 GBP
View
B
Retailer 20
-
$7,269 NZD
$4,090 USD
View
Most Expensive
B
Brilliant Earth
9815203A · Oct 31
$10,060 NZD
$5,660 USD
View
20 more retailers have this diamond
Prices start from $1,393 NZDSave up to $8,666 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
6.18ct Radiant
$1,393 NZD