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Heart|Lab Grown|IGI

12.01ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG671453956

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG671453956

Diamond specifications and retailer prices

From $5,723 AUD
$4,011 USD
As of November 1, 2026
Save $15,817 AUD (73%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $27,839 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 12.01ct lab-grown heart diamond

This 12.01ct 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 LG671453956 or 671453956. Listed at 15 retailers as of October 31, 2026, with a 276% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

12.01
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671453956
Dimensions14.64 × 15.30 × 9.18 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
14.64 mm15.30 mm12.01 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671453956
Side View
Table 59.0%Crown 36.2°Girdle: THK-VTKPavilion 39.6°Culet: NoneDepth 60.0%

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 1
Current: $27,839 AUD|Low: $5,672 AUD|High: $27,839 AUD|Avg: $12,246 AUD
Brilliant Earth
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
November 2, 2026
Retailer 7$5,723 AUD
Retailer 13$6,321 AUD
Retailer 3$7,178 AUD
Retailer 2$7,977 AUD
Retailer 10$8,250 AUD
Retailer 5$8,888 AUD
Retailer 12$9,444 AUD
Retailer 8$9,457 AUD
Retailer 9$11,431 AUD
Retailer 11$12,798 AUD
Retailer 14$15,356 AUD
Retailer 6$19,196 AUD
Retailer 4$21,541 AUD
Brilliant Earth$27,839 AUD

42 data points across 14 retailers

15 retailers$5,723 AUD to $21,541 AUD

A
Cheapest Retailer
-
$5,723 AUD
$4,011 USD
A
Retailer 2
-
$6,321 AUD
$4,430 USD
View
A
Retailer 3
-
$7,178 AUD
HK$39,300 HKD
View
A
Retailer 4
-
$7,977 AUD
£4,402 GBP
View
A
Retailer 5
-
$8,250 AUD
$5,782 USD
View
A
Retailer 6
-
$8,888 AUD
€5,932 EUR
View
B+
Retailer 7
-
$9,444 AUD
ZAR 106,921 ZAR
View
B+
Retailer 8
-
$9,457 AUD
$6,628 USD
View
B
Retailer 9
-
$11,431 AUD
View
B+
Retailer 10
-
$12,798 AUD
$8,969 USD
View
Retailer 11
-
$13,293 AUD
$9,316 USD
View
Price last confirmed 7 days ago
B
Retailer 12
-
$15,356 AUD
$10,762 USD
View
B
Retailer 13
-
$19,196 AUD
SGD 18,180 SGD
View
B
Retailer 14
-
$21,541 AUD
$15,096 USD
View
Most Expensive
Brilliant Earth
18017656A · Oct 26
$27,839 AUD
$19,510 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $5,723 AUDSave up to $15,817 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
12.01ct Heart
$5,723 AUD