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Round|Lab Grown|IGI

8.50ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG589382442

Shape and cutting style on the report: Round brilliant

Certificate IGI LG589382442

Diamond specifications and retailer prices

From $3,013 NZD
$1,695 USD
As of November 2, 2026
Save $13,659 NZD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,671 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 8.5ct lab-grown round diamond

This 8.5ct 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 LG589382442 or 589382442. Listed at 19 retailers as of November 2, 2026, with prices from $3,013 to $16,671, a $13,659 spread on the same certified stone. Brilliant Earth lists it at $16,671. 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

8.50
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589382442
Dimensions13.07 × 12.99 × 8.06 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
13.07 mm12.99 mm8.50 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589382442
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.9%

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: $16,671 NZD|Low: $2,607 NZD|High: $18,751 NZD|Avg: $6,822 NZD|-4.9%
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
November 2, 2026
Retailer 7$2,607 NZD
Retailer 12$3,013 NZD
Retailer 3$3,629 NZD
Retailer 9$3,795 NZD
Retailer 6$4,276 NZD
Retailer 2$4,453 NZD
Retailer 13$4,532 NZD
Retailer 11$5,008 NZD
Retailer 14$5,037 NZD
Retailer 4$7,756 NZD
Retailer 16$8,163 NZD
Retailer 10$8,683 NZD
Retailer 8$9,071 NZD
Retailer 5$9,491 NZD
Retailer 15$10,184 NZD
Brilliant Earth$16,671 NZD

40 data points across 16 retailers

19 retailers$3,013 NZD to $16,671 NZD

Retailer 1
-
$2,398 NZD
$1,349 USD
Price last confirmed 40 days ago
Retailer 2
-
$2,609 NZD
$1,468 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$2,744 NZD
$1,544 USD
View
Price last confirmed 36 days ago
A
Retailer 4
-
$3,013 NZD
$1,695 USD
View
A
Retailer 5
-
$3,629 NZD
$2,042 USD
View
A
Retailer 6
-
$3,795 NZD
£1,681 GBP
View
B+
Retailer 7
-
$4,276 NZD
$2,406 USD
View
A
Retailer 8
-
$4,453 NZD
€2,386 EUR
View
A
Retailer 9
-
$4,532 NZD
ZAR 41,198 ZAR
View
B+
Retailer 10
-
$5,008 NZD
A$4,335 AUD
View
B+
Retailer 11
-
$5,037 NZD
$2,834 USD
View
Retailer 12
-
$5,215 NZD
$2,934 USD
View
Price last confirmed 35 days ago
B
Retailer 13
-
$7,756 NZD
$4,364 USD
View
B+
Retailer 14
-
$8,163 NZD
$4,593 USD
View
B
Retailer 15
-
$8,683 NZD
£3,847 GBP
View
Retailer 16
-
$9,071 NZD
$5,104 USD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$9,491 NZD
$5,340 USD
View
B
Retailer 18
-
$10,184 NZD
$5,730 USD
View
Most Expensive
B
Brilliant Earth
7715407A · Nov 2
$16,671 NZD
$9,380 USD
View
18 more retailers have this diamond
Prices start from $3,013 NZDSave up to $13,659 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
8.50ct Round
$3,013 NZD