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Heart|Lab Grown|IGI

12.56ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG813643585

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG813643585

Diamond specifications and retailer prices

From HK$28,197 HKD
$3,594 USD
As of October 27, 2026
Save HK$87,098 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$115,295 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.56ct lab-grown heart diamond

This 12.56ct 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 LG813643585 or 813643585. Listed at 16 retailers as of October 27, 2026, with prices from HK$28,197 to HK$115,295, a HK$87,098 spread on the same certified stone. Taylor and Hart lists it at HK$115,295. 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

12.56
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813643585
Dimensions16.63 × 14.58 × 8.49 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.63 mm14.58 mm12.56 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813643585
Side View
Table 66.0%Crown 39.6°Girdle: MED-THKPavilion 35.3°Culet: NoneDepth 51.1%

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 27
Current: HK$50,630 HKD|Low: HK$21,434 HKD|High: HK$115,295 HKD|Avg: HK$58,158 HKD|+7.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 29, 2026
Retailer 2HK$31,579 HKD
Retailer 4HK$32,717 HKD
Retailer 10HK$35,070 HKD
Retailer 3HK$43,795 HKD
Retailer 7HK$44,234 HKD
Retailer 5HK$47,192 HKD
Retailer 1HK$50,630 HKD
Retailer 6HK$61,304 HKD
Retailer 8HK$82,223 HKD
Retailer 9HK$87,731 HKD
Taylor and HartHK$115,295 HKD

37 data points across 11 retailers

16 retailersHK$28,197 HKD to HK$115,295 HKD

A
Cheapest Retailer
-
HK$28,197 HKD
$3,594 USD
A
Retailer 2
-
HK$30,685 HKD
$3,911 USD
View
A
Retailer 3
-
HK$31,579 HKD
$4,025 USD
View
Final sale: no returns
Retailer 4
-
HK$32,709 HKD
$4,169 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
HK$32,709 HKD
$4,169 USD
View
A
Retailer 6
-
HK$32,717 HKD
$4,170 USD
View
A
Retailer 7
-
HK$35,070 HKD
$4,470 USD
View
B+
Retailer 8
-
HK$40,876 HKD
$5,210 USD
View
B+
Retailer 9
-
HK$43,795 HKD
£4,395 GBP
View
B+
Retailer 10
-
HK$44,234 HKD
$5,638 USD
View
B+
Retailer 11
-
HK$47,192 HKD
$6,015 USD
View
B+
Retailer 12
-
HK$50,630 HKD
ZAR 104,253 ZAR
View
Retailer 13
-
HK$61,304 HKD
A$12,021 AUD
View
Price last confirmed 9 days ago
B
Retailer 14
-
HK$82,223 HKD
$10,480 USD
View
B
Retailer 15
-
HK$87,731 HKD
$11,182 USD
View
Most Expensive
B
Taylor and Hart
97C2D4F · Oct 31
HK$115,295 HKD
$14,695 USD
View
15 more retailers have this diamond
Prices start from HK$28,197 HKDSave up to HK$87,098 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
12.56ct Heart
HK$28,197 HKD