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Radiant|Lab Grown|IGI

12.56ct F VS1 Radiant Lab Grown Diamond

F/VS1 • IGI LG771603875

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

Certificate IGI LG771603875

Diamond specifications and retailer prices

From €1,367 EUR
£1,203 GBP
As of November 2, 2026
Save €9,983 EUR (88%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: €11,359 EUR at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

About this 12.56ct lab-grown radiant diamond

This 12.56ct lab-grown radiant sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG771603875 or 771603875. Listed at 26 retailers as of November 2, 2026, with a 730% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

12.56
Carat
F
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771603875
Dimensions11.55 × 11.55 × 7.63 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.55 mm11.55 mm12.56 ctF / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771603875
Side View
Table 65.0%Crown 42.7°Girdle: Slightly ThickPavilion 39.6°Culet: NoneDepth 66.1%

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: €11,350 EUR|Low: €1,367 EUR|High: €11,359 EUR|Avg: €4,162 EUR|-0.1%
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
Retailer 20
Retailer 21
Retailer 22
November 2, 2026
Retailer 17€1,367 EUR
Retailer 7€1,467 EUR
Retailer 19€1,597 EUR
Retailer 12€1,702 EUR
Retailer 3€1,804 EUR
Retailer 8€2,028 EUR
Retailer 18€2,392 EUR
Retailer 13€2,648 EUR
Retailer 16€2,675 EUR
Retailer 14€2,787 EUR
Retailer 2€2,811 EUR
Retailer 21€3,154 EUR
Retailer 20€3,190 EUR
Retailer 11€3,519 EUR
Retailer 6€4,587 EUR
Retailer 15€5,223 EUR
Retailer 9€5,882 EUR
Retailer 10€5,976 EUR
Retailer 5€7,071 EUR
Retailer 22€8,025 EUR
Retailer 4€8,571 EUR
Brilliant Earth€11,350 EUR

29 data points across 22 retailers

26 retailers€1,367 EUR to €11,350 EUR

A
Cheapest Retailer
-
€1,367 EUR
£1,203 GBP
A
Retailer 2
-
€1,467 EUR
$1,639 USD
View
A
Retailer 3
-
€1,597 EUR
$1,784 USD
View
A
Retailer 4
-
€1,702 EUR
$1,902 USD
View
A
Retailer 5
-
€1,804 EUR
$2,015 USD
View
A
Retailer 6
-
€1,911 EUR
$2,135 USD
View
Final sale: no returns
A
Retailer 7
-
€2,028 EUR
HK$17,700 HKD
View
A
Retailer 8
-
€2,392 EUR
£2,104 GBP
View
A
Retailer 9
-
€2,648 EUR
View
B+
Retailer 10
-
€2,675 EUR
$2,988 USD
View
A
Retailer 11
-
€2,787 EUR
ZAR 50,307 ZAR
View
A
Retailer 12
-
€2,811 EUR
$3,140 USD
View
B+
Retailer 13
-
€2,935 EUR
$3,279 USD
View
A
Retailer 14
-
€3,154 EUR
A$5,421 AUD
View
B+
Retailer 15
-
€3,190 EUR
$3,564 USD
View
B+
Retailer 16
-
€3,519 EUR
£3,096 GBP
View
B+
Retailer 17
-
€4,533 EUR
$5,064 USD
View
B
Retailer 18
-
€4,587 EUR
$5,125 USD
View
B+
Retailer 19
-
€5,223 EUR
$5,835 USD
View
B
Retailer 20
-
€5,882 EUR
SGD 8,881 SGD
View
B
Retailer 21
-
€5,976 EUR
$6,676 USD
View
B
Retailer 22
-
€7,071 EUR
$7,900 USD
View
B
Retailer 23
-
€8,025 EUR
A$13,794 AUD
View
B
Retailer 24
-
€8,571 EUR
$9,576 USD
View
B
Retailer 25
-
€11,350 EUR
$12,680 USD
View
Most Expensive
Brilliant Earth
18438142A · Oct 21
€11,359 EUR
$12,690 USD
View
Price last confirmed 11 days ago
25 more retailers have this diamond
Prices start from €1,367 EURSave up to €9,983 EUR

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
12.56ct Radiant
€1,367 EUR