CaratHunter
Plans
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 $12,245 AUD
£6,773 GBP
As of November 1, 2026
Save $35,616 AUD (74%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $47,861 AUD 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 $12,245 to $47,861, a $35,616 spread on the same certified stone. Taylor and Hart lists it at $47,861. 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 1
Current: $12,245 AUD|Low: $12,240 AUD|High: $47,861 AUD|Avg: $21,228 AUD|-13.1%
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 1, 2026
Retailer 1$12,245 AUD
Retailer 14$13,143 AUD
Retailer 4$13,668 AUD
Retailer 2$14,088 AUD
Retailer 10$15,083 AUD
Retailer 3$15,245 AUD
Retailer 11$15,530 AUD
Retailer 13$15,780 AUD
Retailer 6$17,379 AUD
Retailer 9$17,631 AUD
Retailer 8$18,276 AUD
Retailer 7$25,419 AUD
Retailer 12$29,219 AUD
Retailer 5$38,822 AUD
Taylor and Hart$47,861 AUD

36 data points across 15 retailers

15 retailers$12,245 AUD to $47,861 AUD

A
Cheapest Retailer
-
$12,245 AUD
£6,773 GBP
A
Retailer 2
-
$13,143 AUD
$9,232 USD
View
B+
Retailer 3
-
$13,668 AUD
$9,601 USD
View
B+
Retailer 4
-
$14,088 AUD
$9,896 USD
View
B+
Retailer 5
-
$15,083 AUD
$10,595 USD
View
B+
Retailer 6
-
$15,245 AUD
$10,709 USD
View
B+
Retailer 7
-
$15,530 AUD
$10,909 USD
View
B+
Retailer 8
-
$15,780 AUD
HK$86,600 HKD
View
Retailer 9
-
$17,379 AUD
$12,208 USD
View
Price last confirmed 20 days ago
Retailer 10
-
$17,631 AUD
$12,385 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$18,276 AUD
£10,108 GBP
View
B
Retailer 12
-
$25,419 AUD
€17,005 EUR
View
B
Retailer 13
-
$29,219 AUD
$20,525 USD
View
B
Retailer 14
-
$38,822 AUD
$27,270 USD
View
Most Expensive
B
Taylor and Hart
I9V68JZ · Oct 31
$47,861 AUD
$33,620 USD
View
14 more retailers have this diamond
Prices start from $12,245 AUDSave up to $35,616 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
18.23ct Heart
$12,245 AUD