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Heart|Lab Grown|IGI

12.31ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG720520483

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720520483

Diamond specifications and retailer prices

From €3,829 EUR
$4,295 USD
As of November 2, 2026
Save €15,189 EUR (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €19,018 EUR at With Clarity · As of November 2, 2026
View at With Clarity

About this 12.31ct lab-grown heart diamond

This 12.31ct 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 LG720520483 or 720520483. Listed at 18 retailers as of November 2, 2026, with prices from €3,829 to €19,018, a €15,189 spread on the same certified stone. With Clarity lists it at €19,018. 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

12.31
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720520483
Dimensions14.26 × 15.98 × 8.97 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.26 mm15.98 mm12.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720520483
Side View
Table 59.0%Crown 36°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 56.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €4,719 EUR|Low: €3,169 EUR|High: €19,018 EUR|Avg: €6,056 EUR|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
With Clarity
November 2, 2026
Retailer 10€3,301 EUR
Retailer 3€3,828 EUR
Retailer 8€3,829 EUR
Retailer 4€4,008 EUR
Retailer 7€4,105 EUR
Retailer 1€4,719 EUR
Retailer 5€5,006 EUR
Retailer 11€5,532 EUR
Retailer 9€5,925 EUR
Retailer 6€7,173 EUR
Retailer 2€9,203 EUR
Retailer 12€12,438 EUR
With Clarity€19,018 EUR

37 data points across 13 retailers

18 retailers€3,829 EUR to €19,018 EUR

Retailer 1
-
€3,590 EUR
$4,027 USD
Price last confirmed 34 days ago
Retailer 2
-
€3,828 EUR
$4,294 USD
View
Price last confirmed 30 days ago
A
Retailer 3
-
€3,829 EUR
$4,295 USD
View
A
Retailer 4
-
€4,008 EUR
$4,495 USD
View
A
Retailer 5
-
€4,105 EUR
$4,604 USD
View
Final sale: no returns
A
Retailer 6
-
€4,719 EUR
$5,293 USD
View
Retailer 7
-
€4,784 EUR
$5,366 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
€5,006 EUR
£4,421 GBP
View
A
Retailer 9
-
€5,532 EUR
$6,205 USD
View
B+
Retailer 10
-
€5,925 EUR
ZAR 107,363 ZAR
View
B+
Retailer 11
-
€7,173 EUR
A$12,378 AUD
View
B+
Retailer 12
-
€8,349 EUR
$9,364 USD
View
B
Retailer 13
-
€9,203 EUR
$10,322 USD
View
B
Retailer 14
-
€9,637 EUR
$10,809 USD
View
B
Retailer 15
-
€10,628 EUR
$11,921 USD
View
B
Retailer 16
-
€12,438 EUR
$13,950 USD
View
B
Retailer 17
-
€13,519 EUR
$15,163 USD
View
Most Expensive
B
With Clarity
720520483 · Nov 2
€19,018 EUR
$21,331 USD
View
17 more retailers have this diamond
Prices start from €3,829 EURSave up to €15,189 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
12.31ct Heart
€3,829 EUR