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Heart|Lab Grown|IGI

12.53ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG669458684

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG669458684

Diamond specifications and retailer prices

From $3,940 USD
£3,102 GBP
As of October 30, 2026
Save $13,466 USD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $24,240 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 12.53ct lab-grown heart diamond

This 12.53ct lab-grown heart 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 LG669458684 or 669458684. Listed at 21 retailers as of October 30, 2026, with a 342% 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

12.53
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669458684
Dimensions14.42 × 14.42 × 16.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.42 mm14.42 mm12.53 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669458684
Side View
Table 65.0%Crown 31.3°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 55.9%

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: Oct 30
Current: $24,240 USD|Low: $3,940 USD|High: $29,010 USD|Avg: $8,898 USD|-16.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 14
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Retailer 20
October 30, 2026
Retailer 2$3,940 USD
Retailer 7$4,216 USD
Retailer 20$4,418 USD
Retailer 19$4,721 USD
Retailer 14$4,891 USD
Retailer 16$5,039 USD
Retailer 11$5,063 USD
Retailer 4$5,065 USD
Retailer 17$6,111 USD
Retailer 15$6,329 USD
Retailer 9$6,588 USD
Retailer 12$7,375 USD
Retailer 13$7,570 USD
Retailer 8$9,578 USD
Retailer 5$10,854 USD
Retailer 18$11,351 USD
Retailer 10$11,447 USD
Retailer 3$13,587 USD
Retailer 6$17,406 USD
Brilliant Earth$24,240 USD

36 data points across 20 retailers

21 retailers$3,940 USD to $17,406 USD

A
Cheapest Retailer
-
$3,940 USD
£3,102 GBP
A
Retailer 2
-
$4,216 USD
View
A
Retailer 3
-
$4,418 USD
View
A
Retailer 4
-
$4,721 USD
View
Final sale: no returns
A
Retailer 5
-
$4,891 USD
View
B+
Retailer 6
-
$5,039 USD
View
Retailer 7
-
$5,063 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$5,065 USD
View
B+
Retailer 9
-
$6,111 USD
View
B+
Retailer 10
-
$6,329 USD
£4,983 GBP
View
B+
Retailer 11
-
$6,588 USD
View
B+
Retailer 12
-
$7,375 USD
View
B+
Retailer 13
-
$7,570 USD
ZAR 122,292 ZAR
View
Retailer 14
-
$9,578 USD
A$14,736 AUD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$10,854 USD
View
B
Retailer 16
-
$11,351 USD
View
Retailer 17
-
$11,447 USD
A$17,611 AUD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$12,846 USD
View
B
Retailer 19
-
$13,587 USD
View
B
Retailer 20
-
$17,406 USD
View
Most Expensive
Brilliant Earth
13435437A · Oct 30
$24,240 USD
View
Price under review
20 more retailers have this diamond
Prices start from $3,940 USDSave up to $13,466 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
12.53ct Heart
$3,940 USD