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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 HK$30,818 HKD
£3,093 GBP
As of November 1, 2026
Save HK$162,343 HKD (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$193,161 HKD at Brilliant Earth · As of October 31, 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 31, 2026, with prices from HK$30,818 to HK$193,161, a HK$162,343 spread on the same certified stone. Brilliant Earth lists it at HK$193,161. 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 × 16.48 × 9.21 mm
L/W Ratio1.14
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 mm16.48 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: Nov 1
Current: HK$193,161 HKD|Low: HK$30,818 HKD|High: HK$227,604 HKD|Avg: HK$66,730 HKD|-15.1%
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
November 1, 2026
Retailer 2HK$30,818 HKD
Retailer 9HK$33,077 HKD
Retailer 4HK$34,662 HKD
Retailer 3HK$37,040 HKD
Retailer 16HK$38,373 HKD
Retailer 17HK$39,534 HKD
Retailer 11HK$39,723 HKD
Retailer 6HK$39,738 HKD
Retailer 18HK$47,945 HKD
Retailer 13HK$49,244 HKD
Retailer 14HK$49,930 HKD
Retailer 15HK$59,391 HKD
Retailer 10HK$75,149 HKD
Retailer 7HK$85,157 HKD
Retailer 12HK$87,848 HKD
Retailer 19HK$89,057 HKD
Retailer 5HK$106,599 HKD
Retailer 8HK$136,559 HKD
Brilliant EarthHK$193,161 HKD

37 data points across 19 retailers

21 retailersHK$30,818 HKD to HK$193,161 HKD

A
Cheapest Retailer
-
HK$30,818 HKD
£3,093 GBP
A
Retailer 2
-
HK$33,077 HKD
$4,216 USD
View
A
Retailer 3
-
HK$34,662 HKD
$4,418 USD
View
A
Retailer 4
-
HK$37,040 HKD
$4,721 USD
View
Final sale: no returns
A
Retailer 5
-
HK$38,373 HKD
$4,891 USD
View
B+
Retailer 6
-
HK$39,534 HKD
$5,039 USD
View
Retailer 7
-
HK$39,723 HKD
$5,063 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
HK$39,738 HKD
$5,065 USD
View
B+
Retailer 9
-
HK$47,945 HKD
$6,111 USD
View
B+
Retailer 10
-
HK$49,244 HKD
£4,942 GBP
View
B+
Retailer 11
-
HK$49,930 HKD
$6,364 USD
View
B+
Retailer 12
-
HK$57,862 HKD
$7,375 USD
View
B+
Retailer 13
-
HK$59,391 HKD
ZAR 122,292 ZAR
View
Retailer 14
-
HK$75,149 HKD
A$14,736 AUD
View
Price last confirmed 9 days ago
B
Retailer 15
-
HK$85,157 HKD
$10,854 USD
View
B
Retailer 16
-
HK$87,848 HKD
A$17,226 AUD
View
B
Retailer 17
-
HK$89,057 HKD
$11,351 USD
View
B
Retailer 18
-
HK$100,786 HKD
$12,846 USD
View
B
Retailer 19
-
HK$106,599 HKD
$13,587 USD
View
B
Retailer 20
-
HK$136,559 HKD
$17,406 USD
View
Most Expensive
B
Brilliant Earth
13435437A · Oct 31
HK$193,161 HKD
$24,620 USD
View
20 more retailers have this diamond
Prices start from HK$30,818 HKDSave up to HK$162,343 HKD

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
HK$30,818 HKD