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Heart|Lab Grown|IGI

1.51ct I VS1 Heart Lab Grown Diamond

ID • I/VS1 • IGI LG659434943

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG659434943

Diamond specifications and retailer prices

From €261 EUR
$292 USD
As of October 30, 2026
Save €1,036 EUR (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,297 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown heart diamond

This 1.51ct lab-grown heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG659434943 or 659434943. Listed at 17 retailers as of October 30, 2026, with prices from €261 to €1,297, a €1,036 spread on the same certified stone. MOH London lists it at €1,297. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG659434943
Dimensions10.37 × 7.13 × 4.39 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.37 mm7.13 mm1.51 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG659434943
Side View
Table 68.0%Crown 33.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 55.4%

Caratlytics Score

How it works →
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: Oct 30
Current: €1,297 EUR|Low: €251 EUR|High: €1,352 EUR|Avg: €633 EUR
MOH London
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 1, 2026
Retailer 9€261 EUR
Retailer 3€303 EUR
Retailer 11€323 EUR
Retailer 13€324 EUR
Retailer 2€423 EUR
Retailer 5€426 EUR
Retailer 12€430 EUR
Retailer 14€531 EUR
Retailer 4€556 EUR
Retailer 7€556 EUR
Retailer 6€867 EUR
Retailer 8€994 EUR
Retailer 10€1,253 EUR
MOH London€1,297 EUR

37 data points across 14 retailers

17 retailers€261 EUR to €1,297 EUR

Retailer 1
-
€251 EUR
$280 USD
Price last confirmed 30 days ago
A
Retailer 2
-
€261 EUR
$292 USD
View
Retailer 3
-
€303 EUR
$338 USD
View
Price last confirmed 34 days ago
Retailer 4
-
€320 EUR
$357 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
€323 EUR
$361 USD
View
Retailer 6
-
€324 EUR
$362 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
€423 EUR
£372 GBP
View
A
Retailer 8
-
€426 EUR
$476 USD
View
A
Retailer 9
-
€430 EUR
$480 USD
View
B+
Retailer 10
-
€531 EUR
$593 USD
View
B+
Retailer 11
-
€556 EUR
$621 USD
View
A
Retailer 12
-
€556 EUR
ZAR 10,035 ZAR
View
B
Retailer 13
-
€994 EUR
$1,111 USD
View
Retailer 14
-
€1,040 EUR
$1,162 USD
View
Price last confirmed 32 days ago
B
Retailer 15
-
€1,084 EUR
$1,211 USD
View
Retailer 16
-
€1,253 EUR
$1,400 USD
View
Price last confirmed 14 days ago
Most Expensive
B
MOH London
LG659434943 · Nov 1
€1,297 EUR
£1,141 GBP
View
16 more retailers have this diamond
Prices start from €261 EURSave up to €1,036 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
1.51ct Heart
€261 EUR