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Round|Lab Grown|IGI

8.66ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG719515588

Shape and cutting style on the report: Round brilliant

Certificate IGI LG719515588

Diamond specifications and retailer prices

From $2,571 AUD
$1,802 USD
As of November 1, 2026
Save $15,108 AUD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $23,744 AUD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 8.66ct lab-grown round diamond

This 8.66ct 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 LG719515588 or 719515588. Listed at 15 retailers as of November 1, 2026, with a 588% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

8.66
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719515588
Dimensions13.22 × 13.29 × 8.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.22 mm13.29 mm8.66 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719515588
Side View
Table 56.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,744 AUD|Low: $2,467 AUD|High: $24,371 AUD|Avg: $7,336 AUD|-2.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$2,571 AUD
Retailer 10$2,878 AUD
Retailer 7$2,982 AUD
Retailer 5$3,225 AUD
Retailer 9$3,671 AUD
Retailer 2$4,472 AUD
Retailer 4$5,520 AUD
Retailer 8$6,937 AUD
Retailer 3$16,682 AUD
Brilliant Earth$23,744 AUD

46 data points across 10 retailers

15 retailers$2,571 AUD to $17,679 AUD

A
Cheapest Retailer
-
$2,571 AUD
$1,802 USD
A
Retailer 2
-
$2,797 AUD
$1,960 USD
View
A
Retailer 3
-
$2,878 AUD
$2,017 USD
View
Final sale: no returns
A
Retailer 4
-
$2,982 AUD
$2,090 USD
View
Retailer 5
-
$2,982 AUD
$2,090 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$3,225 AUD
$2,260 USD
View
B+
Retailer 7
-
$3,671 AUD
$2,573 USD
View
B+
Retailer 8
-
$4,472 AUD
£2,468 GBP
View
B+
Retailer 9
-
$4,525 AUD
$3,171 USD
View
B+
Retailer 10
-
$5,520 AUD
ZAR 62,496 ZAR
View
B+
Retailer 11
-
$5,663 AUD
$3,969 USD
View
B
Retailer 12
-
$6,937 AUD
$4,862 USD
View
B
Retailer 13
-
$8,346 AUD
$5,849 USD
View
B
Retailer 14
-
$17,679 AUD
$12,390 USD
View
Most Expensive
Brilliant Earth
16810098A · Nov 1
$23,744 AUD
$16,640 USD
View
Price under review
14 more retailers have this diamond
Prices start from $2,571 AUDSave up to $15,108 AUD

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
8.66ct Round
$2,571 AUD