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Radiant|Lab Grown|IGI

12.85ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG747546594

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

Certificate IGI LG747546594

Diamond specifications and retailer prices

From $3,646 AUD
£2,012 GBP
As of November 2, 2026
Save $31,113 AUD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $34,759 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 12.85ct lab-grown radiant diamond

This 12.85ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG747546594 or 747546594. Listed at 12 retailers as of November 2, 2026, with prices from $3,646 to $34,759, a $31,113 spread on the same certified stone. Brilliant Earth lists it at $34,759. 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

12.85
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG747546594
Dimensions11.42 × 11.42 × 7.61 mm
L/W Ratio1.00
Culet sizePointed
Top View
11.42 mm11.42 mm12.85 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG747546594
Side View
Table 67.0%Crown 47.1°Girdle: Slightly ThickPavilion 34.4°Culet: NoneDepth 66.6%

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: $6,868 AUD|Low: $3,646 AUD|High: $24,400 AUD|Avg: $8,300 AUD|+0.2%
Retailer 1
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
November 2, 2026
Retailer 8$3,646 AUD
Retailer 3$4,402 AUD
Retailer 6$4,555 AUD
Retailer 11$4,916 AUD
Retailer 2$5,776 AUD
Retailer 15$5,904 AUD
Retailer 4$6,089 AUD
Retailer 13$6,167 AUD
Retailer 1$6,868 AUD
Retailer 9$8,412 AUD
Retailer 7$9,576 AUD
Retailer 5$10,319 AUD
Retailer 14$11,920 AUD
Retailer 10$13,559 AUD
Retailer 12$24,400 AUD

11 data points across 15 retailers

12 retailers$3,646 AUD to $34,759 AUD

A
Cheapest Retailer
-
$3,646 AUD
£2,012 GBP
A
Retailer 2
-
$4,916 AUD
$3,445 USD
View
A
Retailer 3
-
$5,776 AUD
$4,048 USD
View
A
Retailer 4
-
$5,904 AUD
$4,138 USD
View
B+
Retailer 5
-
$6,167 AUD
$4,322 USD
View
B+
Retailer 6
-
$6,241 AUD
$4,374 USD
View
B+
Retailer 7
-
$6,868 AUD
€4,584 EUR
View
B+
Retailer 8
-
$8,412 AUD
View
B
Retailer 9
-
$11,920 AUD
$8,354 USD
View
B
Retailer 10
-
$13,559 AUD
View
B
Retailer 11
-
$24,400 AUD
$17,100 USD
View
Most Expensive
B
Brilliant Earth
22301408A · Nov 2
$34,759 AUD
$24,360 USD
View
11 more retailers have this diamond
Prices start from $3,646 AUDSave up to $31,113 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
12.85ct Radiant
$3,646 AUD