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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 $5,609 AUD
£3,102 GBP
As of October 30, 2026
Save $19,170 AUD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $34,508 AUD 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
Colour
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: $34,508 AUD|Low: $5,609 AUD|High: $41,299 AUD|Avg: $12,668 AUD|-16.4%
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
October 30, 2026
Retailer 2$5,609 AUD
Retailer 7$6,002 AUD
Retailer 20$6,289 AUD
Retailer 19$6,721 AUD
Retailer 14$6,963 AUD
Retailer 16$7,174 AUD
Retailer 11$7,208 AUD
Retailer 4$7,211 AUD
Retailer 17$8,700 AUD
Retailer 15$9,010 AUD
Retailer 9$9,379 AUD
Retailer 12$10,499 AUD
Retailer 13$10,776 AUD
Retailer 8$13,636 AUD
Retailer 5$15,452 AUD
Retailer 18$16,159 AUD
Retailer 10$16,296 AUD
Retailer 3$19,342 AUD
Retailer 6$24,779 AUD
Brilliant Earth$34,508 AUD

36 data points across 20 retailers

21 retailers$5,609 AUD to $24,779 AUD

A
Cheapest Retailer
-
$5,609 AUD
£3,102 GBP
A
Retailer 2
-
$6,002 AUD
$4,216 USD
View
A
Retailer 3
-
$6,289 AUD
$4,418 USD
View
A
Retailer 4
-
$6,721 AUD
$4,721 USD
View
Final sale: no returns
A
Retailer 5
-
$6,963 AUD
$4,891 USD
View
B+
Retailer 6
-
$7,174 AUD
$5,039 USD
View
Retailer 7
-
$7,208 AUD
$5,063 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$7,211 AUD
$5,065 USD
View
B+
Retailer 9
-
$8,700 AUD
$6,111 USD
View
B+
Retailer 10
-
$9,010 AUD
£4,983 GBP
View
B+
Retailer 11
-
$9,379 AUD
$6,588 USD
View
B+
Retailer 12
-
$10,499 AUD
$7,375 USD
View
B+
Retailer 13
-
$10,776 AUD
ZAR 122,292 ZAR
View
Retailer 14
-
$13,636 AUD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$15,452 AUD
$10,854 USD
View
B
Retailer 16
-
$16,159 AUD
$11,351 USD
View
Retailer 17
-
$16,296 AUD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$18,288 AUD
$12,846 USD
View
B
Retailer 19
-
$19,342 AUD
$13,587 USD
View
B
Retailer 20
-
$24,779 AUD
$17,406 USD
View
Most Expensive
Brilliant Earth
13435437A · Oct 30
$34,508 AUD
$24,240 USD
View
Price under review
20 more retailers have this diamond
Prices start from $5,609 AUDSave up to $19,170 AUD

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
$5,609 AUD