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Heart|Lab Grown|IGI

12.13ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG628489578

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG628489578

Diamond specifications and retailer prices

From HK$34,227 HKD
£3,435 GBP
As of November 2, 2026
Save HK$118,290 HKD (78%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$152,516 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.13ct lab-grown heart diamond

This 12.13ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG628489578 or 628489578. Listed at 20 retailers as of October 31, 2026, with prices from HK$34,227 to HK$152,516, a HK$118,290 spread on the same certified stone. Taylor and Hart lists it at HK$152,516. 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

12.13
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628489578
Dimensions13.66 × 16.11 × 9.45 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.Type IIa
Top View
13.66 mm16.11 mm12.13 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628489578
Side View
Table 62.0%Crown 37.5°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 58.7%

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 2
Current: HK$54,872 HKD|Low: HK$34,216 HKD|High: HK$118,455 HKD|Avg: HK$62,678 HKD|-0.5%
Retailer 1
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
November 3, 2026
Retailer 9HK$34,227 HKD
Retailer 15HK$36,743 HKD
Retailer 5HK$41,145 HKD
Retailer 4HK$42,620 HKD
Retailer 16HK$42,620 HKD
Retailer 12HK$42,644 HKD
Retailer 8HK$43,083 HKD
Retailer 3HK$53,251 HKD
Retailer 14HK$54,428 HKD
Retailer 1HK$54,872 HKD
Retailer 2HK$65,899 HKD
Retailer 13HK$65,966 HKD
Retailer 11HK$79,944 HKD
Retailer 10HK$80,732 HKD
Retailer 7HK$117,463 HKD
Retailer 6HK$118,455 HKD

41 data points across 16 retailers

20 retailersHK$34,227 HKD to HK$152,516 HKD

A
Cheapest Retailer
-
HK$34,227 HKD
£3,435 GBP
A
Retailer 2
-
HK$36,743 HKD
$4,683 USD
View
A
Retailer 3
-
HK$38,501 HKD
$4,907 USD
View
A
Retailer 4
-
HK$40,574 HKD
View
A
Retailer 5
-
HK$41,145 HKD
$5,244 USD
View
Final sale: no returns
A
Retailer 6
-
HK$42,620 HKD
$5,432 USD
View
Retailer 7
-
HK$42,620 HKD
$5,432 USD
View
Price last confirmed 21 days ago
A
Retailer 8
-
HK$42,644 HKD
$5,435 USD
View
A
Retailer 9
-
HK$43,083 HKD
$5,491 USD
View
B+
Retailer 10
-
HK$53,251 HKD
$6,787 USD
View
B+
Retailer 11
-
HK$54,428 HKD
$6,937 USD
View
B+
Retailer 12
-
HK$54,872 HKD
£5,507 GBP
View
B+
Retailer 13
-
HK$65,899 HKD
$8,399 USD
View
B+
Retailer 14
-
HK$65,966 HKD
ZAR 135,824 ZAR
View
B
Retailer 15
-
HK$74,295 HKD
$9,469 USD
View
B
Retailer 16
-
HK$79,944 HKD
$10,189 USD
View
B
Retailer 17
-
HK$80,732 HKD
A$15,830 AUD
View
B
Retailer 18
-
HK$117,463 HKD
SGD 20,231 SGD
View
B
Retailer 19
-
HK$118,455 HKD
$15,097 USD
View
Most Expensive
B
Taylor and Hart
7TQ4J77 · Oct 31
HK$152,516 HKD
$19,438 USD
View
19 more retailers have this diamond
Prices start from HK$34,227 HKDSave up to HK$118,290 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
12.13ct Heart
HK$34,227 HKD