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Heart|Lab Grown|IGI

1.00ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG842658717

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842658717

Diamond specifications and retailer prices

From €292 EUR
$326 USD
As of October 30, 2026
Save €1,209 EUR (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,501 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG842658717 or 842658717. Listed at 17 retailers as of October 27, 2026, with prices from €292 to €1,501, a €1,209 spread on the same certified stone. Queensmith lists it at €1,501. 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
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842658717
Dimensions5.95 × 6.60 × 4.16 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.95 mm6.60 mm1.00 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842658717
Side View
Table 65.0%Crown 35.4°Girdle: STK-THKPavilion 41.9°Culet: NoneDepth 63.0%

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: Oct 30
Current: €1,501 EUR|Low: €292 EUR|High: €1,501 EUR|Avg: €755 EUR
Queensmith
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 4€292 EUR
Retailer 2€344 EUR
Retailer 8€437 EUR
Retailer 16€465 EUR
Retailer 7€523 EUR
Retailer 12€524 EUR
Retailer 14€557 EUR
Retailer 10€574 EUR
Retailer 5€689 EUR
Retailer 13€791 EUR
Retailer 6€868 EUR
Retailer 11€954 EUR
Retailer 15€996 EUR
Retailer 9€1,086 EUR
Retailer 17€1,302 EUR
Retailer 3€1,332 EUR
Queensmith€1,501 EUR

14 data points across 17 retailers

17 retailers€292 EUR to €1,501 EUR

A
Cheapest Retailer
-
€292 EUR
$326 USD
Final sale: no returns
A
Retailer 2
-
€344 EUR
£303 GBP
View
B+
Retailer 3
-
€437 EUR
$488 USD
View
B+
Retailer 4
-
€465 EUR
$520 USD
View
B+
Retailer 5
-
€523 EUR
$584 USD
View
B+
Retailer 6
-
€524 EUR
View
B+
Retailer 7
-
€557 EUR
ZAR 10,058 ZAR
View
B+
Retailer 8
-
€574 EUR
£505 GBP
View
B+
Retailer 9
-
€689 EUR
$770 USD
View
B
Retailer 10
-
€791 EUR
A$1,360 AUD
View
B
Retailer 11
-
€868 EUR
SGD 1,310 SGD
View
B
Retailer 12
-
€954 EUR
A$1,639 AUD
View
B
Retailer 13
-
€996 EUR
$1,113 USD
View
B
Retailer 14
-
€1,086 EUR
$1,213 USD
View
B
Retailer 15
-
€1,302 EUR
£1,145 GBP
View
B
Retailer 16
-
€1,332 EUR
$1,488 USD
View
Most Expensive
B
Queensmith
LG842658717 · Oct 27
€1,501 EUR
£1,320 GBP
View
16 more retailers have this diamond
Prices start from €292 EURSave up to €1,209 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
1.00ct Heart
€292 EUR