Radiant|Lab Grown|IGI

15.11ct F VVS2 Radiant Lab Grown Diamond

ID • F/VVS2 • IGI LG720587946

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

Certificate IGI LG720587946

Diamond specifications and retailer prices

From $5,579 AUD
$3,919 USD
As of November 2, 2026
Save $12,550 AUD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $44,174 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 15.11ct lab-grown radiant diamond

This 15.11ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG720587946 or 720587946. Listed at 15 retailers as of November 2, 2026, with a 225% 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

15.11
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720587946
Dimensions18.17 × 12.27 × 7.44 mm
L/W Ratio1.48
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.17 mm12.27 mm15.11 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720587946
Side View
Table 69.0%Crown 43.5°Girdle: MediumPavilion 34.4°Culet: NoneDepth 60.6%

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: $44,174 AUD|Low: $5,356 AUD|High: $49,561 AUD|Avg: $14,893 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 8$5,579 AUD
Retailer 11$5,847 AUD
Retailer 3$6,470 AUD
Retailer 9$6,470 AUD
Retailer 6$6,556 AUD
Retailer 4$6,894 AUD
Retailer 10$8,926 AUD
Retailer 2$9,178 AUD
Retailer 7$11,056 AUD
Retailer 12$17,795 AUD
Brilliant Earth$44,174 AUD
Retailer 5$49,561 AUD

44 data points across 12 retailers

15 retailers$5,579 AUD to $18,130 AUD

A
Cheapest Retailer
-
$5,579 AUD
$3,919 USD
A
Retailer 2
-
$5,847 AUD
$4,107 USD
View
A
Retailer 3
-
$6,247 AUD
$4,388 USD
View
Final sale: no returns
A
Retailer 4
-
$6,470 AUD
$4,545 USD
View
Retailer 5
-
$6,470 AUD
$4,545 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$6,556 AUD
$4,605 USD
View
A
Retailer 7
-
$6,894 AUD
$4,843 USD
View
B+
Retailer 8
-
$8,926 AUD
$6,270 USD
View
B+
Retailer 9
-
$9,178 AUD
£5,076 GBP
View
B+
Retailer 10
-
$11,056 AUD
ZAR 125,459 ZAR
View
Retailer 11
-
$12,982 AUD
$9,119 USD
View
Price last confirmed 84 days ago
B
Retailer 12
-
$17,795 AUD
$12,500 USD
View
B
Retailer 13
-
$18,130 AUD
$12,735 USD
View
Retailer 14
-
$38,380 AUD
$26,960 USD
View
Price under review
Most Expensive
Brilliant Earth
17148862A · Oct 31
$44,174 AUD
$31,030 USD
View
Price under review
14 more retailers have this diamond
Prices start from $5,579 AUDSave up to $12,550 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
15.11ct Radiant
$5,579 AUD