Radiant|Lab Grown|IGI

6.57ct G VVS2 Radiant Lab Grown Diamond

ID • G/VVS2 • IGI LG836618099

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

Certificate IGI LG836618099

Diamond specifications and retailer prices

From $1,616 NZD
$911 USD
As of October 30, 2026
Save $14,201 NZD (90%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $15,818 NZD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 6.57ct lab-grown radiant diamond

This 6.57ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG836618099 or 836618099. Listed at 24 retailers as of October 30, 2026, with prices from $1,616 to $15,818, a $14,201 spread on the same certified stone. Helzberg Diamonds lists it at $15,818. 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

6.57
Carat
G
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836618099
Dimensions12.97 × 9.11 × 6.41 mm
L/W Ratio1.42
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.97 mm9.11 mm6.57 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836618099
Side View
Table 61.0%Crown 37.9°Girdle: ThickPavilion 35.5°Culet: NoneDepth 70.4%

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: Oct 30
Current: $15,818 NZD|Low: $1,616 NZD|High: $21,327 NZD|Avg: $5,198 NZD
Helzberg Diamonds
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
Retailer 23
Retailer 24
October 31, 2026
Retailer 8$1,616 NZD
Retailer 5$1,758 NZD
Retailer 15$1,810 NZD
Retailer 7$1,874 NZD
Retailer 12$1,874 NZD
Retailer 22$1,979 NZD
Retailer 18$2,182 NZD
Retailer 10$2,608 NZD
Retailer 13$2,862 NZD
Retailer 2$2,916 NZD
Retailer 11$3,004 NZD
Retailer 19$3,473 NZD
Retailer 24$3,626 NZD
Retailer 20$3,738 NZD
Retailer 6$5,165 NZD
Retailer 9$5,270 NZD
Retailer 14$5,399 NZD
Retailer 3$5,436 NZD
Retailer 16$6,161 NZD
Retailer 23$6,391 NZD
Retailer 17$6,513 NZD
Retailer 4$10,273 NZD
Retailer 21$11,302 NZD
Helzberg Diamonds$15,818 NZD

27 data points across 24 retailers

24 retailers$1,616 NZD to $15,818 NZD

A
Cheapest Retailer
-
$1,616 NZD
$911 USD
A
Retailer 2
-
$1,758 NZD
$991 USD
View
A
Retailer 3
-
$1,810 NZD
$1,020 USD
View
Final sale: no returns
A
Retailer 4
-
$1,874 NZD
$1,056 USD
View
Retailer 5
-
$1,874 NZD
$1,056 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$1,979 NZD
£878 GBP
View
A
Retailer 7
-
$2,182 NZD
$1,230 USD
View
A
Retailer 8
-
$2,608 NZD
$1,470 USD
View
A
Retailer 9
-
$2,862 NZD
£1,270 GBP
View
A
Retailer 10
-
$2,916 NZD
€1,565 EUR
View
B+
Retailer 11
-
$3,004 NZD
$1,693 USD
View
A
Retailer 12
-
$3,473 NZD
A$3,011 AUD
View
A
Retailer 13
-
$3,626 NZD
ZAR 33,018 ZAR
View
A
Retailer 14
-
$3,738 NZD
$2,107 USD
View
B+
Retailer 15
-
$5,165 NZD
£2,292 GBP
View
B+
Retailer 16
-
$5,270 NZD
$2,970 USD
View
B+
Retailer 17
-
$5,399 NZD
$3,043 USD
View
B+
Retailer 18
-
$5,436 NZD
$3,064 USD
View
B+
Retailer 19
-
$6,161 NZD
SGD 4,692 SGD
View
B+
Retailer 20
-
$6,391 NZD
£2,836 GBP
View
B+
Retailer 21
-
$6,513 NZD
$3,671 USD
View
Retailer 22
-
$10,273 NZD
$5,790 USD
View
Price last confirmed 14 days ago
B
Retailer 23
-
$11,302 NZD
$6,370 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHOGPP · Oct 31
$15,818 NZD
$8,915 USD
View
23 more retailers have this diamond
Prices start from $1,616 NZDSave up to $14,201 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
6.57ct Radiant
$1,616 NZD