Heart|Lab Grown|IGI

30.09ct I VS1 Heart Lab Grown Diamond

ID • I/VS1 • IGI LG811683529

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG811683529

Diamond specifications and retailer prices

From $11,938 USD
£9,400 GBP
As of October 26, 2026
Save $5,984 USD (33%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $51,036 USD at Adiamor · As of October 26, 2026
View at Adiamor

About this 30.09ct lab-grown heart diamond

This 30.09ct lab-grown heart sits in the over five carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811683529 or 811683529. Listed at 6 retailers as of October 25, 2026, with a 50% 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

30.09
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811683529
Dimensions20.76 × 19.43 × 12.69 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
20.76 mm19.43 mm30.09 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811683529
Side View
Table 60.0%Crown 39.1°Girdle: STK-VTKPavilion 39.4°Culet: NoneDepth 61.1%

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: Oct 26
Current: $51,036 USD|Low: $11,919 USD|High: $51,036 USD|Avg: $23,580 USD
Adiamor
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 26, 2026
Retailer 2$11,938 USD
Retailer 5$17,692 USD
Retailer 6$17,922 USD
Retailer 3$19,821 USD
Retailer 4$20,041 USD
Adiamor$51,036 USD

20 data points across 6 retailers

6 retailers$11,938 USD to $17,922 USD

A
Cheapest Retailer
-
$11,938 USD
£9,400 GBP
B
Retailer 2
-
$17,692 USD
View
B
Retailer 3
-
$17,922 USD
View
Retailer 4
-
$19,821 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$20,041 USD
View
Price last confirmed 18 days ago
Most Expensive
Adiamor
D-80645150 · Oct 26
$51,036 USD
View
Price under review
5 more retailers have this diamond
Prices start from $11,938 USDSave up to $5,984 USD

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
30.09ct Heart
$11,938 USD