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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 $14,525 NZD
£6,433 GBP
As of November 2, 2026
Save $51,240 NZD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $65,765 NZD 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 $14,525 to $65,765, a $51,240 spread on the same certified stone. Taylor and Hart lists it at $65,765. 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: $19,800 NZD|Low: $14,525 NZD|High: $70,413 NZD|Avg: $27,377 NZD|-20.3%
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
Taylor and Hart
November 3, 2026
Retailer 8$14,525 NZD
Retailer 6$17,462 NZD
Retailer 2$18,635 NZD
Retailer 11$19,380 NZD
Retailer 1$19,800 NZD
Retailer 5$20,013 NZD
Retailer 3$20,259 NZD
Retailer 4$21,345 NZD
Retailer 10$21,553 NZD
Retailer 12$21,617 NZD
Retailer 7$21,626 NZD
Retailer 9$40,854 NZD
Retailer 13$44,921 NZD
Taylor and Hart$65,765 NZD

35 data points across 14 retailers

14 retailers$14,525 NZD to $65,765 NZD

A
Cheapest Retailer
-
$14,525 NZD
£6,433 GBP
B+
Retailer 2
-
$17,462 NZD
$9,821 USD
View
Final sale: no returns
B+
Retailer 3
-
$18,635 NZD
$10,481 USD
View
B+
Retailer 4
-
$19,380 NZD
$10,900 USD
View
B+
Retailer 5
-
$19,800 NZD
$11,136 USD
View
B+
Retailer 6
-
$20,013 NZD
$11,256 USD
View
B+
Retailer 7
-
$20,259 NZD
$11,394 USD
View
B+
Retailer 8
-
$21,345 NZD
$12,005 USD
View
B+
Retailer 9
-
$21,553 NZD
$12,122 USD
View
Retailer 10
-
$21,617 NZD
$12,158 USD
View
Price last confirmed 22 days ago
B+
Retailer 11
-
$21,626 NZD
£9,577 GBP
View
B
Retailer 12
-
$40,854 NZD
A$35,350 AUD
View
B
Retailer 13
-
$44,921 NZD
$25,265 USD
View
Most Expensive
B
Taylor and Hart
6PTYT4W · Oct 31
$65,765 NZD
$36,988 USD
View
13 more retailers have this diamond
Prices start from $14,525 NZDSave up to $51,240 NZD

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
$14,525 NZD