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 $3,619 NZD
$2,036 USD
As of November 2, 2026
Save $18,953 NZD (84%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $22,572 NZD 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 $3,619 to $22,572, a $18,953 spread on the same certified stone. Brilliant Earth lists it at $22,572. 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

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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: $22,572 NZD|Low: $3,251 NZD|High: $22,572 NZD|Avg: $8,639 NZD
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
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
November 2, 2026
Retailer 14$3,619 NZD
Retailer 15$3,928 NZD
Retailer 9$3,937 NZD
Retailer 7$4,198 NZD
Retailer 21$4,497 NZD
Retailer 6$4,937 NZD
Retailer 11$5,163 NZD
Retailer 16$5,727 NZD
Retailer 22$5,769 NZD
Retailer 2$6,320 NZD
Retailer 19$6,498 NZD
Retailer 3$6,567 NZD
Retailer 13$6,636 NZD
Retailer 17$7,777 NZD
Retailer 10$7,963 NZD
Retailer 20$10,575 NZD
Retailer 8$11,309 NZD
Retailer 12$14,686 NZD
Retailer 5$15,679 NZD
Retailer 18$15,948 NZD
Retailer 4$17,858 NZD
Brilliant Earth$22,572 NZD

35 data points across 22 retailers

23 retailers$3,619 NZD to $22,572 NZD

A
Cheapest Retailer
-
$3,619 NZD
$2,036 USD
Retailer 2
-
$3,928 NZD
$2,210 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$3,937 NZD
$2,215 USD
View
A
Retailer 4
-
$4,198 NZD
$2,362 USD
View
A
Retailer 5
-
$4,497 NZD
$2,530 USD
View
A
Retailer 6
-
$4,937 NZD
HK$21,700 HKD
View
A
Retailer 7
-
$5,163 NZD
$2,905 USD
View
A
Retailer 8
-
$5,727 NZD
£2,537 GBP
View
A
Retailer 9
-
$5,769 NZD
$3,246 USD
View
A
Retailer 10
-
$6,320 NZD
$3,556 USD
View
A
Retailer 11
-
$6,498 NZD
ZAR 59,064 ZAR
View
B+
Retailer 12
-
$6,567 NZD
$3,695 USD
View
A
Retailer 13
-
$6,636 NZD
€3,556 EUR
View
B+
Retailer 14
-
$7,777 NZD
A$6,732 AUD
View
A
Retailer 15
-
$7,963 NZD
£3,528 GBP
View
B+
Retailer 16
-
$10,575 NZD
$5,950 USD
View
B+
Retailer 17
-
$11,053 NZD
$6,219 USD
View
B+
Retailer 18
-
$11,309 NZD
$6,363 USD
View
B
Retailer 19
-
$14,686 NZD
$8,263 USD
View
B
Retailer 20
-
$15,679 NZD
$8,822 USD
View
B
Retailer 21
-
$15,948 NZD
A$13,805 AUD
View
B
Retailer 22
-
$17,858 NZD
$10,048 USD
View
Most Expensive
B
Brilliant Earth
20999261A · Nov 2
$22,572 NZD
$12,700 USD
View
22 more retailers have this diamond
Prices start from $3,619 NZDSave up to $18,953 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
12.57ct Radiant
$3,619 NZD