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Heart|Lab Grown|IGI

18.23ct G VS2 Heart Lab Grown Diamond

EX • G/VS2 • IGI LG675574744

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG675574744

Diamond specifications and retailer prices

From HK$67,481 HKD
£6,772 GBP
As of November 2, 2026
Save HK$196,303 HKD (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$263,784 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 18.23ct lab-grown heart diamond

This 18.23ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG675574744 or 675574744. Listed at 15 retailers as of October 31, 2026, with prices from HK$67,481 to HK$263,784, a HK$196,303 spread on the same certified stone. Taylor and Hart lists it at HK$263,784. 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

18.23
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675574744
Dimensions16.50 × 17.74 × 10.81 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.50 mm17.74 mm18.23 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675574744
Side View
Table 59.0%Crown 39.6°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 60.9%

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 2
Current: HK$100,572 HKD|Low: HK$67,461 HKD|High: HK$263,784 HKD|Avg: HK$116,794 HKD|-13.8%
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
Taylor and Hart
November 3, 2026
Retailer 9HK$67,481 HKD
Retailer 14HK$72,435 HKD
Retailer 4HK$75,330 HKD
Retailer 2HK$77,645 HKD
Retailer 11HK$83,129 HKD
Retailer 3HK$84,024 HKD
Retailer 7HK$86,511 HKD
Retailer 13HK$86,972 HKD
Retailer 6HK$95,785 HKD
Retailer 10HK$97,174 HKD
Retailer 1HK$100,572 HKD
Retailer 8HK$140,053 HKD
Retailer 12HK$161,041 HKD
Retailer 5HK$213,963 HKD
Taylor and HartHK$263,784 HKD

38 data points across 15 retailers

15 retailersHK$67,481 HKD to HK$263,784 HKD

A
Cheapest Retailer
-
HK$67,481 HKD
£6,772 GBP
A
Retailer 2
-
HK$72,435 HKD
$9,232 USD
View
B+
Retailer 3
-
HK$75,330 HKD
$9,601 USD
View
B+
Retailer 4
-
HK$77,645 HKD
$9,896 USD
View
B+
Retailer 5
-
HK$83,129 HKD
$10,595 USD
View
B+
Retailer 6
-
HK$84,024 HKD
$10,709 USD
View
B+
Retailer 7
-
HK$86,511 HKD
$11,026 USD
View
B+
Retailer 8
-
HK$86,972 HKD
View
Retailer 9
-
HK$95,785 HKD
$12,208 USD
View
Price last confirmed 21 days ago
Retailer 10
-
HK$97,174 HKD
$12,385 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
HK$100,572 HKD
£10,093 GBP
View
B
Retailer 12
-
HK$140,053 HKD
€17,000 EUR
View
B
Retailer 13
-
HK$161,041 HKD
$20,525 USD
View
B
Retailer 14
-
HK$213,963 HKD
$27,270 USD
View
Most Expensive
B
Taylor and Hart
I9V68JZ · Oct 31
HK$263,784 HKD
$33,620 USD
View
14 more retailers have this diamond
Prices start from HK$67,481 HKDSave up to HK$196,303 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
18.23ct Heart
HK$67,481 HKD