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Round|Lab Grown|IGI

6.61ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG588372643

Shape and cutting style on the report: Round brilliant

Certificate IGI LG588372643

Diamond specifications and retailer prices

From $2,239 NZD
$1,260 USD
As of November 2, 2026
Save $9,295 NZD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,535 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 6.61ct lab-grown round diamond

This 6.61ct lab-grown round 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 LG588372643 or 588372643. Listed at 18 retailers as of October 31, 2026, with prices from $2,239 to $11,535, a $9,295 spread on the same certified stone. Brilliant Earth lists it at $11,535. 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

6.61
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG588372643
Dimensions12.05 × 11.99 × 7.42 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.05 mm11.99 mm6.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG588372643
Side View
Table 57.0%Crown 35.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.7%

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: $11,535 NZD|Low: $1,861 NZD|High: $11,535 NZD|Avg: $4,417 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
November 2, 2026
Retailer 3$1,861 NZD
Retailer 8$1,971 NZD
Retailer 12$2,239 NZD
Retailer 15$2,796 NZD
Retailer 2$2,963 NZD
Retailer 4$3,091 NZD
Retailer 10$3,182 NZD
Retailer 11$3,575 NZD
Retailer 13$3,733 NZD
Retailer 14$4,292 NZD
Retailer 16$5,037 NZD
Retailer 5$6,002 NZD
Retailer 6$6,036 NZD
Retailer 9$6,544 NZD
Retailer 7$6,712 NZD
Brilliant Earth$11,535 NZD

39 data points across 16 retailers

18 retailers$2,239 NZD to $11,535 NZD

Retailer 1
-
$1,699 NZD
$956 USD
Price last confirmed 40 days ago
Retailer 2
-
$1,848 NZD
$1,040 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$1,943 NZD
$1,093 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$2,239 NZD
$1,260 USD
View
A
Retailer 5
-
$2,796 NZD
$1,573 USD
View
A
Retailer 6
-
$2,963 NZD
£1,313 GBP
View
B+
Retailer 7
-
$3,091 NZD
$1,739 USD
View
A
Retailer 8
-
$3,182 NZD
€1,705 EUR
View
B+
Retailer 9
-
$3,575 NZD
A$3,095 AUD
View
B+
Retailer 10
-
$3,733 NZD
ZAR 33,936 ZAR
View
B+
Retailer 11
-
$4,292 NZD
$2,415 USD
View
B+
Retailer 12
-
$5,037 NZD
$2,834 USD
View
Retailer 13
-
$5,540 NZD
$3,117 USD
View
Price last confirmed 37 days ago
Retailer 14
-
$6,002 NZD
$3,377 USD
View
Price last confirmed 22 days ago
B
Retailer 15
-
$6,036 NZD
$3,396 USD
View
B
Retailer 16
-
$6,544 NZD
£2,899 GBP
View
B
Retailer 17
-
$6,712 NZD
$3,776 USD
View
Most Expensive
B
Brilliant Earth
7670352A · Oct 31
$11,535 NZD
$6,490 USD
View
17 more retailers have this diamond
Prices start from $2,239 NZDSave up to $9,295 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
6.61ct Round
$2,239 NZD