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Heart|Lab Grown|IGI

1.00ct J VS1 Heart Lab Grown Diamond

GD • J/VS1 • IGI LG771639660

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG771639660

Diamond specifications and retailer prices

From €248 EUR
$277 USD
As of October 30, 2026
Save €987 EUR (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,235 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded J colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG771639660 or 771639660. Listed at 17 retailers as of October 26, 2026, with prices from €248 to €1,235, a €987 spread on the same certified stone. MOH London lists it at €1,235. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
J
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle33.6°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771639660
Dimensions5.96 × 6.38 × 3.45 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.96 mm6.38 mm1.00 ctJ / VS1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG771639660
Side View
Table 70.0%Crown 33.6°Girdle: THK-VTKPavilion 32°Culet: NoneDepth 54.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,235 EUR|Low: €238 EUR|High: €1,485 EUR|Avg: €635 EUR|-15.9%
MOH London
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
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Retailer 17
October 31, 2026
Retailer 17€248 EUR
Retailer 16€287 EUR
Retailer 3€308 EUR
Retailer 5€308 EUR
Retailer 14€344 EUR
Retailer 13€448 EUR
Retailer 11€489 EUR
Retailer 2€508 EUR
Retailer 10€519 EUR
Retailer 4€523 EUR
Retailer 12€528 EUR
Retailer 7€650 EUR
Retailer 15€738 EUR
Retailer 8€824 EUR
Retailer 9€989 EUR
Retailer 6€1,034 EUR
MOH London€1,235 EUR

38 data points across 17 retailers

17 retailers€248 EUR to €1,235 EUR

B+
Cheapest Retailer
-
€248 EUR
$277 USD
B+
Retailer 2
-
€287 EUR
$321 USD
View
B+
Retailer 3
-
€308 EUR
$344 USD
View
B+
Retailer 4
-
€308 EUR
$344 USD
View
B+
Retailer 5
-
€344 EUR
HK$3,000 HKD
View
B
Retailer 6
-
€448 EUR
$500 USD
View
B
Retailer 7
-
€489 EUR
View
B
Retailer 8
-
€508 EUR
$568 USD
View
B
Retailer 9
-
€519 EUR
$580 USD
View
B
Retailer 10
-
€523 EUR
$584 USD
View
B
Retailer 11
-
€528 EUR
ZAR 9,538 ZAR
View
B
Retailer 12
-
€650 EUR
$726 USD
View
C
Retailer 13
-
€738 EUR
$825 USD
View
C
Retailer 14
-
€824 EUR
SGD 1,244 SGD
View
C
Retailer 15
-
€989 EUR
$1,105 USD
View
C
Retailer 16
-
€1,034 EUR
$1,155 USD
View
Most Expensive
C
MOH London
LG771639660 · Oct 26
€1,235 EUR
£1,086 GBP
View
16 more retailers have this diamond
Prices start from €248 EURSave up to €987 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.

B+
1.00ct Heart
€248 EUR