CaratHunter
Plans
Heart|Lab Grown|IGI

21.10ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG782617670

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG782617670

Diamond specifications and retailer prices

From $15,669 AUD
$10,981 USD
As of November 2, 2026
Save $38,645 AUD (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $54,314 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 21.1ct lab-grown heart diamond

This 21.1ct 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 LG782617670 or 782617670. Listed at 14 retailers as of October 31, 2026, with prices from $15,669 to $54,314, a $38,645 spread on the same certified stone. Taylor and Hart lists it at $54,314. 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

21.10
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782617670
Dimensions19.21 × 16.45 × 9.02 mm
L/W Ratio1.17
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
19.21 mm16.45 mm21.10 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782617670
Side View
Table 70.0%Crown 33.2°Girdle: THK-VTKPavilion 30.4°Culet: NoneDepth 47.0%

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: $34,321 AUD|Low: $15,669 AUD|High: $61,184 AUD|Avg: $26,870 AUD|-23.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 11$15,669 AUD
Retailer 8$16,297 AUD
Retailer 2$16,809 AUD
Retailer 12$17,034 AUD
Retailer 4$17,549 AUD
Retailer 10$18,176 AUD
Retailer 6$18,179 AUD
Retailer 3$19,392 AUD
Retailer 7$19,587 AUD
Retailer 5$21,468 AUD
Retailer 1$34,321 AUD
Retailer 9$39,381 AUD
Taylor and Hart$54,314 AUD

19 data points across 13 retailers

14 retailers$15,669 AUD to $54,314 AUD

A
Cheapest Retailer
-
$15,669 AUD
$10,981 USD
B+
Retailer 2
-
$16,297 AUD
$11,421 USD
View
B+
Retailer 3
-
$16,809 AUD
$11,780 USD
View
B+
Retailer 4
-
$17,034 AUD
$11,938 USD
View
B+
Retailer 5
-
$17,549 AUD
$12,299 USD
View
Final sale: no returns
B+
Retailer 6
-
$18,176 AUD
$12,738 USD
View
Retailer 7
-
$18,176 AUD
$12,738 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
$18,179 AUD
$12,740 USD
View
B+
Retailer 9
-
$19,392 AUD
$13,590 USD
View
B+
Retailer 10
-
$19,587 AUD
$13,727 USD
View
B+
Retailer 11
-
$21,468 AUD
£11,847 GBP
View
B
Retailer 12
-
$34,321 AUD
View
B
Retailer 13
-
$39,381 AUD
$27,599 USD
View
Most Expensive
B
Taylor and Hart
632FEXV · Oct 31
$54,314 AUD
$38,064 USD
View
13 more retailers have this diamond
Prices start from $15,669 AUDSave up to $38,645 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
21.10ct Heart
$15,669 AUD