Radiant|Lab Grown|IGI

12.57ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG702553544

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

Certificate IGI LG702553544

Diamond specifications and retailer prices

From $7,809 USD
As of October 29, 2026
Save $14,452 USD (65%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $29,453 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 12.57ct lab-grown radiant diamond

This 12.57ct 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 LG702553544 or 702553544. Listed at 19 retailers as of October 29, 2026, with a 185% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48.1°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702553544
Dimensions10.90 × 10.90 × 7.34 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
10.90 mm10.90 mm12.57 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702553544
Side View
Table 62.0%Crown 48.1°Girdle: MED-STKPavilion 31.1°Culet: NoneDepth 67.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $11,006 USD|Low: $5,577 USD|High: $48,480 USD|Avg: $14,841 USD|-0.0%
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
October 30, 2026
Retailer 4$7,294 USD
Retailer 3$7,809 USD
Retailer 10$7,950 USD
Retailer 12$8,050 USD
Retailer 2$8,850 USD
Retailer 11$9,297 USD
Retailer 1$11,006 USD
Retailer 6$12,802 USD
Retailer 7$13,821 USD
Retailer 14$13,907 USD
Retailer 13$14,796 USD
Retailer 9$17,022 USD
Retailer 5$22,261 USD
Retailer 8$43,510 USD

44 data points across 14 retailers

19 retailers$7,809 USD to $22,261 USD

Retailer 1
-
$6,694 USD
Price last confirmed 28 days ago
Retailer 2
-
$7,252 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
$7,809 USD
View
Final sale: no returns
Retailer 4
-
$7,950 USD
View
Price last confirmed 9 days ago
B+
Retailer 5
-
$8,050 USD
View
Retailer 6
-
$8,088 USD
View
Price last confirmed 27 days ago
B+
Retailer 7
-
$8,850 USD
View
B+
Retailer 8
-
$9,297 USD
View
B
Retailer 9
-
$9,437 USD
View
Retailer 10
-
$10,041 USD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$11,006 USD
£8,666 GBP
View
B
Retailer 12
-
$12,802 USD
£10,080 GBP
View
B
Retailer 13
-
$13,821 USD
ZAR 223,274 ZAR
View
Retailer 14
-
$13,907 USD
A$21,395 AUD
View
Price last confirmed 21 days ago
B
Retailer 15
-
$14,796 USD
View
Retailer 16
-
$17,022 USD
A$26,188 AUD
View
Price last confirmed 7 days ago
B
Retailer 17
-
$22,261 USD
View
Most Expensive
Taylor and Hart
XRLM00C · Oct 30
$29,453 USD
View
Price under review
17 more retailers have this diamond
Prices start from $7,809 USDSave up to $14,452 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.

B+
12.57ct Radiant
$7,809 USD