Heart|Lab Grown|IGI

12.28ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG659441285

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG659441285

Diamond specifications and retailer prices

From $6,512 CAD
$4,662 USD
As of October 29, 2026
Save $17,477 CAD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $39,714 CAD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 12.28ct lab-grown heart diamond

This 12.28ct 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 LG659441285 or 659441285. Listed at 15 retailers as of October 29, 2026, with a 268% 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

12.28
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659441285
Dimensions16.22 × 14.13 × 9.42 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.22 mm14.13 mm12.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659441285
Side View
Table 56.0%Crown 36.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 58.1%

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: Oct 29
Current: $39,714 CAD|Low: $5,469 CAD|High: $39,714 CAD|Avg: $13,295 CAD
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
October 31, 2026
Retailer 12$5,481 CAD
Retailer 3$6,512 CAD
Retailer 5$6,746 CAD
Retailer 9$6,747 CAD
Retailer 14$6,950 CAD
Retailer 11$8,778 CAD
Retailer 2$8,801 CAD
Retailer 8$10,441 CAD
Retailer 15$10,442 CAD
Retailer 13$12,589 CAD
Retailer 10$12,734 CAD
Retailer 6$15,283 CAD
Retailer 4$18,738 CAD
Retailer 7$23,989 CAD
Brilliant Earth$39,714 CAD

18 data points across 15 retailers

15 retailers$6,512 CAD to $23,989 CAD

Retailer 1
-
$5,481 CAD
£3,089 GBP
Price last confirmed 19 days ago
A
Retailer 2
-
$6,512 CAD
$4,662 USD
View
Final sale: no returns
Retailer 3
-
$6,746 CAD
$4,829 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$6,747 CAD
$4,830 USD
View
B+
Retailer 5
-
$6,950 CAD
$4,975 USD
View
B+
Retailer 6
-
$8,778 CAD
$6,284 USD
View
B+
Retailer 7
-
$8,801 CAD
£4,961 GBP
View
B+
Retailer 8
-
$10,441 CAD
ZAR 120,746 ZAR
View
B+
Retailer 9
-
$10,442 CAD
$7,475 USD
View
B
Retailer 10
-
$12,589 CAD
$9,012 USD
View
Retailer 11
-
$12,734 CAD
A$14,025 AUD
View
Price last confirmed 8 days ago
B
Retailer 12
-
$15,283 CAD
$10,941 USD
View
B
Retailer 13
-
$18,738 CAD
$13,414 USD
View
B
Retailer 14
-
$23,989 CAD
$17,173 USD
View
Most Expensive
Brilliant Earth
11953179A · Oct 30
$39,714 CAD
$28,430 USD
View
Price under review
14 more retailers have this diamond
Prices start from $6,512 CADSave up to $17,477 CAD

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
12.28ct Heart
$6,512 CAD