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Heart|Lab Grown|IGI

20.59ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG727503697

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG727503697

Diamond specifications and retailer prices

From $13,863 AUD
£7,650 GBP
As of November 2, 2026
Save $38,755 AUD (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $52,619 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.59ct lab-grown heart diamond

This 20.59ct 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 LG727503697 or 727503697. Listed at 16 retailers as of October 31, 2026, with prices from $13,863 to $52,619, a $38,755 spread on the same certified stone. Taylor and Hart lists it at $52,619. 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

20.59
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG727503697
Dimensions18.55 × 17.64 × 10.79 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.55 mm17.64 mm20.59 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG727503697
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 58.2%

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: $28,852 AUD|Low: $13,859 AUD|High: $52,619 AUD|Avg: $24,604 AUD|-15.3%
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
Taylor and Hart
November 2, 2026
Retailer 8$13,863 AUD
Retailer 15$14,881 AUD
Retailer 13$15,476 AUD
Retailer 6$15,909 AUD
Retailer 3$16,178 AUD
Retailer 11$17,020 AUD
Retailer 14$17,051 AUD
Retailer 5$17,263 AUD
Retailer 7$17,263 AUD
Retailer 12$18,601 AUD
Retailer 10$20,372 AUD
Retailer 1$28,852 AUD
Retailer 9$32,627 AUD
Retailer 2$37,483 AUD
Retailer 4$47,716 AUD
Taylor and Hart$52,619 AUD

34 data points across 16 retailers

16 retailers$13,863 AUD to $52,619 AUD

A
Cheapest Retailer
-
$13,863 AUD
£7,650 GBP
B+
Retailer 2
-
$14,881 AUD
$10,429 USD
View
B+
Retailer 3
-
$15,476 AUD
$10,846 USD
View
B+
Retailer 4
-
$15,909 AUD
$11,149 USD
View
B+
Retailer 5
-
$16,178 AUD
$11,338 USD
View
B+
Retailer 6
-
$17,020 AUD
$11,928 USD
View
B+
Retailer 7
-
$17,051 AUD
$11,950 USD
View
Retailer 8
-
$17,263 AUD
$12,098 USD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$17,263 AUD
$12,098 USD
View
B+
Retailer 10
-
$18,601 AUD
$13,036 USD
View
B+
Retailer 11
-
$20,372 AUD
£11,242 GBP
View
B
Retailer 12
-
$28,852 AUD
€19,257 EUR
View
B
Retailer 13
-
$32,627 AUD
View
B
Retailer 14
-
$37,483 AUD
$26,269 USD
View
B
Retailer 15
-
$47,716 AUD
$33,440 USD
View
Most Expensive
B
Taylor and Hart
MMOHPT2 · Oct 31
$52,619 AUD
$36,876 USD
View
15 more retailers have this diamond
Prices start from $13,863 AUDSave up to $38,755 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
20.59ct Heart
$13,863 AUD