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Radiant|Lab Grown|IGI

12.57ct F VS1 Radiant Lab Grown Diamond

EX • F/VS1 • IGI LG791607296

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

Certificate IGI LG791607296

Diamond specifications and retailer prices

From $2,905 AUD
$2,036 USD
As of November 2, 2026
Save $15,216 AUD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $18,122 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 12.57ct lab-grown radiant diamond

This 12.57ct 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 LG791607296 or 791607296. Listed at 23 retailers as of November 2, 2026, with prices from $2,905 to $18,122, a $15,216 spread on the same certified stone. Brilliant Earth lists it at $18,122. 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

12.57
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle22.7°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791607296
Dimensions16.93 × 11.53 × 7.53 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.93 mm11.53 mm12.57 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791607296
Side View
Table 64.0%Crown 22.7°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 65.3%

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 2
Current: $18,122 AUD|Low: $2,610 AUD|High: $18,122 AUD|Avg: $6,943 AUD
Brilliant Earth
Retailer 2
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Retailer 6
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Retailer 16
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Retailer 21
Retailer 22
November 3, 2026
Retailer 14$2,905 AUD
Retailer 15$3,153 AUD
Retailer 9$3,161 AUD
Retailer 7$3,370 AUD
Retailer 21$3,610 AUD
Retailer 6$3,963 AUD
Retailer 11$4,145 AUD
Retailer 22$4,632 AUD
Retailer 2$4,637 AUD
Retailer 13$5,074 AUD
Retailer 19$5,217 AUD
Retailer 3$5,272 AUD
Retailer 16$5,328 AUD
Retailer 17$6,244 AUD
Retailer 10$6,393 AUD
Retailer 20$8,490 AUD
Retailer 8$9,079 AUD
Retailer 12$11,790 AUD
Retailer 5$12,588 AUD
Retailer 18$12,804 AUD
Retailer 4$14,337 AUD
Brilliant Earth$18,122 AUD

36 data points across 22 retailers

23 retailers$2,905 AUD to $18,122 AUD

A
Cheapest Retailer
-
$2,905 AUD
$2,036 USD
Retailer 2
-
$3,153 AUD
$2,210 USD
View
Price last confirmed 23 days ago
A
Retailer 3
-
$3,161 AUD
$2,215 USD
View
A
Retailer 4
-
$3,370 AUD
$2,362 USD
View
A
Retailer 5
-
$3,610 AUD
$2,530 USD
View
A
Retailer 6
-
$3,963 AUD
HK$21,700 HKD
View
A
Retailer 7
-
$4,145 AUD
$2,905 USD
View
A
Retailer 8
-
$4,632 AUD
$3,246 USD
View
A
Retailer 9
-
$4,637 AUD
£2,559 GBP
View
A
Retailer 10
-
$5,074 AUD
$3,556 USD
View
A
Retailer 11
-
$5,217 AUD
ZAR 59,064 ZAR
View
B+
Retailer 12
-
$5,272 AUD
$3,695 USD
View
A
Retailer 13
-
$5,328 AUD
€3,556 EUR
View
B+
Retailer 14
-
$6,244 AUD
View
A
Retailer 15
-
$6,393 AUD
£3,528 GBP
View
B+
Retailer 16
-
$8,490 AUD
$5,950 USD
View
B+
Retailer 17
-
$8,874 AUD
$6,219 USD
View
B+
Retailer 18
-
$9,079 AUD
$6,363 USD
View
B
Retailer 19
-
$11,790 AUD
$8,263 USD
View
B
Retailer 20
-
$12,588 AUD
$8,822 USD
View
B
Retailer 21
-
$12,804 AUD
View
B
Retailer 22
-
$14,337 AUD
$10,048 USD
View
Most Expensive
B
Brilliant Earth
20999261A · Nov 2
$18,122 AUD
$12,700 USD
View
22 more retailers have this diamond
Prices start from $2,905 AUDSave up to $15,216 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
12.57ct Radiant
$2,905 AUD