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Heart|Lab Grown|IGI

20.12ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG802624683

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG802624683

Diamond specifications and retailer prices

From $11,657 AUD
£6,433 GBP
As of November 2, 2026
Save $41,121 AUD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $52,779 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.12ct lab-grown heart diamond

This 20.12ct 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 LG802624683 or 802624683. Listed at 14 retailers as of October 31, 2026, with prices from $11,657 to $52,779, a $41,121 spread on the same certified stone. Taylor and Hart lists it at $52,779. 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

20.12
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle32.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG802624683
Dimensions18.87 × 15.69 × 10.69 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.87 mm15.69 mm20.12 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG802624683
Side View
Table 57.0%Crown 40.1°Girdle: THK-VTKPavilion 32.8°Culet: NoneDepth 56.7%

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: $17,355 AUD|Low: $11,657 AUD|High: $56,508 AUD|Avg: $21,983 AUD|-23.9%
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
Taylor and Hart
November 3, 2026
Retailer 6$11,657 AUD
Retailer 13$14,955 AUD
Retailer 10$15,553 AUD
Retailer 4$16,061 AUD
Retailer 2$16,258 AUD
Retailer 5$16,749 AUD
Retailer 3$17,130 AUD
Retailer 8$17,297 AUD
Retailer 11$17,348 AUD
Retailer 1$17,355 AUD
Retailer 9$18,694 AUD
Retailer 7$32,787 AUD
Retailer 12$36,051 AUD
Taylor and Hart$52,779 AUD

35 data points across 14 retailers

14 retailers$11,657 AUD to $52,779 AUD

A
Cheapest Retailer
-
$11,657 AUD
£6,433 GBP
B+
Retailer 2
-
$14,955 AUD
$10,481 USD
View
B+
Retailer 3
-
$15,553 AUD
$10,900 USD
View
B+
Retailer 4
-
$16,061 AUD
$11,256 USD
View
B+
Retailer 5
-
$16,258 AUD
$11,394 USD
View
B+
Retailer 6
-
$16,749 AUD
$11,738 USD
View
Final sale: no returns
B+
Retailer 7
-
$17,130 AUD
$12,005 USD
View
B+
Retailer 8
-
$17,297 AUD
$12,122 USD
View
Retailer 9
-
$17,348 AUD
$12,158 USD
View
Price last confirmed 21 days ago
B+
Retailer 10
-
$17,355 AUD
£9,577 GBP
View
B+
Retailer 11
-
$18,694 AUD
$13,101 USD
View
B
Retailer 12
-
$32,787 AUD
View
B
Retailer 13
-
$36,051 AUD
$25,265 USD
View
Most Expensive
B
Taylor and Hart
6PTYT4W · Oct 31
$52,779 AUD
$36,988 USD
View
13 more retailers have this diamond
Prices start from $11,657 AUDSave up to $41,121 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
20.12ct Heart
$11,657 AUD