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Heart|Lab Grown|IGI

12.80ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG617449446

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG617449446

Diamond specifications and retailer prices

From $7,525 AUD
£4,153 GBP
As of November 2, 2026
Save $25,480 AUD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $33,006 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.8ct lab-grown heart diamond

This 12.8ct 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 LG617449446 or 617449446. Listed at 21 retailers as of October 31, 2026, with prices from $7,525 to $33,006, a $25,480 spread on the same certified stone. Taylor and Hart lists it at $33,006. 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

12.80
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617449446
Dimensions15.99 × 14.40 × 9.42 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.99 mm14.40 mm12.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617449446
Side View
Table 59.0%Crown 37.1°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 58.9%

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: $10,726 AUD|Low: $7,523 AUD|High: $23,795 AUD|Avg: $12,099 AUD|-4.3%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 11$7,525 AUD
Retailer 4$8,078 AUD
Retailer 2$8,466 AUD
Retailer 9$9,045 AUD
Retailer 8$9,156 AUD
Retailer 7$9,370 AUD
Retailer 15$9,370 AUD
Retailer 5$9,375 AUD
Retailer 1$10,726 AUD
Retailer 16$11,123 AUD
Retailer 13$11,937 AUD
Retailer 6$14,467 AUD
Retailer 14$14,504 AUD
Retailer 17$15,279 AUD
Retailer 10$15,373 AUD
Retailer 3$17,701 AUD
Retailer 12$17,876 AUD

38 data points across 17 retailers

21 retailers$7,525 AUD to $33,006 AUD

A
Cheapest Retailer
-
$7,525 AUD
£4,153 GBP
A
Retailer 2
-
$8,078 AUD
$5,661 USD
View
A
Retailer 3
-
$8,466 AUD
$5,933 USD
View
B+
Retailer 4
-
$9,045 AUD
$6,339 USD
View
Final sale: no returns
B+
Retailer 5
-
$9,156 AUD
$6,417 USD
View
Retailer 6
-
$9,370 AUD
$6,567 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$9,370 AUD
$6,567 USD
View
A
Retailer 8
-
$9,375 AUD
$6,570 USD
View
B+
Retailer 9
-
$10,726 AUD
$7,517 USD
View
B+
Retailer 10
-
$11,123 AUD
$7,795 USD
View
B+
Retailer 11
-
$11,937 AUD
£6,587 GBP
View
Retailer 12
-
$11,967 AUD
$8,387 USD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$14,467 AUD
$10,139 USD
View
B+
Retailer 14
-
$14,504 AUD
ZAR 164,211 ZAR
View
B
Retailer 15
-
$15,279 AUD
$10,708 USD
View
B
Retailer 16
-
$15,373 AUD
€10,261 EUR
View
B
Retailer 17
-
$17,701 AUD
$12,405 USD
View
B
Retailer 18
-
$17,876 AUD
View
B
Retailer 19
-
$22,548 AUD
$15,802 USD
View
B
Retailer 20
-
$26,064 AUD
$18,266 USD
View
Most Expensive
B
Taylor and Hart
8BL32P5 · Oct 31
$33,006 AUD
$23,131 USD
View
20 more retailers have this diamond
Prices start from $7,525 AUDSave up to $25,480 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
12.80ct Heart
$7,525 AUD