Radiant|Lab Grown|IGI

12.60ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG717520590

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

Certificate IGI LG717520590

Diamond specifications and retailer prices

From $3,744 USD
As of October 29, 2026
Save $9,524 USD (72%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $13,268 USD at Taylor and Hart · As of October 27, 2026
View at Taylor and Hart

About this 12.6ct lab-grown radiant diamond

This 12.6ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG717520590 or 717520590. Listed at 15 retailers as of October 27, 2026, with prices from $3,744 to $13,268, a $9,524 spread on the same certified stone. Taylor and Hart lists it at $13,268. 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

12.60
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle30.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG717520590
Dimensions17.13 × 11.55 × 7.25 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.13 mm11.55 mm12.60 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG717520590
Side View
Table 69.0%Crown 38.3°Girdle: MediumPavilion 30.5°Culet: NoneDepth 62.8%

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: Oct 29
Current: $6,003 USD|Low: $2,661 USD|High: $13,268 USD|Avg: $7,207 USD|+4.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 29, 2026
Retailer 3$3,744 USD
Retailer 4$3,828 USD
Retailer 5$5,154 USD
Retailer 9$5,349 USD
Retailer 6$5,350 USD
Retailer 12$5,776 USD
Retailer 1$6,003 USD
Retailer 2$6,019 USD
Retailer 7$7,239 USD
Retailer 10$9,674 USD
Retailer 11$9,709 USD
Retailer 8$11,156 USD
Taylor and Hart$13,268 USD

42 data points across 13 retailers

15 retailers$3,744 USD to $13,268 USD

Retailer 1
-
$3,168 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$3,744 USD
View
Final sale: no returns
Retailer 3
-
$3,828 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$3,828 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$5,154 USD
£4,058 GBP
View
A
Retailer 6
-
$5,349 USD
View
A
Retailer 7
-
$5,350 USD
View
B+
Retailer 8
-
$5,776 USD
£4,548 GBP
View
B+
Retailer 9
-
$6,003 USD
ZAR 96,972 ZAR
View
A
Retailer 10
-
$6,019 USD
View
Retailer 11
-
$7,239 USD
A$11,137 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$9,674 USD
View
B+
Retailer 13
-
$9,709 USD
View
B
Retailer 14
-
$11,156 USD
View
Most Expensive
B
Taylor and Hart
W8G0RC3 · Oct 27
$13,268 USD
View
14 more retailers have this diamond
Prices start from $3,744 USDSave up to $9,524 USD

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
12.60ct Radiant
$3,744 USD