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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 €8,662 EUR
£7,650 GBP
As of November 2, 2026
Save €24,216 EUR (74%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €32,878 EUR 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 €8,662 to €32,878, a €24,216 spread on the same certified stone. Taylor and Hart lists it at €32,878. 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: €18,028 EUR|Low: €8,660 EUR|High: €32,878 EUR|Avg: €15,374 EUR|-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€8,662 EUR
Retailer 15€9,298 EUR
Retailer 13€9,670 EUR
Retailer 6€9,940 EUR
Retailer 3€10,109 EUR
Retailer 11€10,635 EUR
Retailer 14€10,654 EUR
Retailer 5€10,786 EUR
Retailer 7€10,786 EUR
Retailer 12€11,623 EUR
Retailer 10€12,729 EUR
Retailer 1€18,028 EUR
Retailer 9€20,387 EUR
Retailer 2€23,421 EUR
Retailer 4€29,814 EUR
Taylor and Hart€32,878 EUR

34 data points across 16 retailers

16 retailers€8,662 EUR to €32,878 EUR

A
Cheapest Retailer
-
€8,662 EUR
£7,650 GBP
B+
Retailer 2
-
€9,298 EUR
$10,429 USD
View
B+
Retailer 3
-
€9,670 EUR
$10,846 USD
View
B+
Retailer 4
-
€9,940 EUR
$11,149 USD
View
B+
Retailer 5
-
€10,109 EUR
$11,338 USD
View
B+
Retailer 6
-
€10,635 EUR
$11,928 USD
View
B+
Retailer 7
-
€10,654 EUR
$11,950 USD
View
Retailer 8
-
€10,786 EUR
$12,098 USD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
€10,786 EUR
$12,098 USD
View
B+
Retailer 10
-
€11,623 EUR
$13,036 USD
View
B+
Retailer 11
-
€12,729 EUR
£11,242 GBP
View
B
Retailer 12
-
€18,028 EUR
View
B
Retailer 13
-
€20,387 EUR
A$35,178 AUD
View
B
Retailer 14
-
€23,421 EUR
$26,269 USD
View
B
Retailer 15
-
€29,814 EUR
$33,440 USD
View
Most Expensive
B
Taylor and Hart
MMOHPT2 · Oct 31
€32,878 EUR
$36,876 USD
View
15 more retailers have this diamond
Prices start from €8,662 EURSave up to €24,216 EUR

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
€8,662 EUR