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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 $4,542 NZD
£2,012 GBP
As of November 2, 2026
Save $38,753 NZD (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $43,295 NZD 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 $4,542 to $43,295, a $38,753 spread on the same certified stone. Brilliant Earth lists it at $43,295. 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: $8,555 NZD|Low: $4,542 NZD|High: $30,392 NZD|Avg: $10,338 NZD|+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$4,542 NZD
Retailer 3$5,483 NZD
Retailer 6$5,673 NZD
Retailer 11$6,123 NZD
Retailer 2$7,195 NZD
Retailer 15$7,354 NZD
Retailer 4$7,584 NZD
Retailer 13$7,681 NZD
Retailer 1$8,555 NZD
Retailer 9$10,478 NZD
Retailer 7$11,927 NZD
Retailer 5$12,853 NZD
Retailer 14$14,848 NZD
Retailer 10$16,889 NZD
Retailer 12$30,392 NZD

11 data points across 15 retailers

12 retailers$4,542 NZD to $43,295 NZD

A
Cheapest Retailer
-
$4,542 NZD
£2,012 GBP
A
Retailer 2
-
$6,123 NZD
$3,445 USD
View
A
Retailer 3
-
$7,195 NZD
$4,048 USD
View
A
Retailer 4
-
$7,354 NZD
$4,138 USD
View
B+
Retailer 5
-
$7,681 NZD
$4,322 USD
View
B+
Retailer 6
-
$7,774 NZD
$4,374 USD
View
B+
Retailer 7
-
$8,555 NZD
€4,584 EUR
View
B+
Retailer 8
-
$10,478 NZD
A$9,070 AUD
View
B
Retailer 9
-
$14,848 NZD
$8,354 USD
View
B
Retailer 10
-
$16,889 NZD
A$14,619 AUD
View
B
Retailer 11
-
$30,392 NZD
$17,100 USD
View
Most Expensive
B
Brilliant Earth
22301408A · Nov 2
$43,295 NZD
$24,360 USD
View
11 more retailers have this diamond
Prices start from $4,542 NZDSave up to $38,753 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
12.85ct Radiant
$4,542 NZD