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Heart|Lab Grown|IGI

1.28ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG591310915

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591310915

Diamond specifications and retailer prices

From €168 EUR
$188 USD
As of October 30, 2026
Save €1,662 EUR (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,830 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG591310915 or 591310915. Listed at 20 retailers as of October 27, 2026, with prices from €168 to €1,830, a €1,662 spread on the same certified stone. Queensmith lists it at €1,830. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591310915
Dimensions7.14 × 7.46 × 4.11 mm
L/W Ratio1.04
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.14 mm7.46 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591310915
Side View
Table 64.0%Crown 38.3°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 55.1%

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: Oct 30
Current: €353 EUR|Low: €168 EUR|High: €988 EUR|Avg: €447 EUR|-8.5%
Retailer 1
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 31, 2026
Retailer 8€168 EUR
Retailer 6€188 EUR
Retailer 5€196 EUR
Retailer 2€209 EUR
Retailer 4€209 EUR
Retailer 12€263 EUR
Retailer 1€353 EUR
Retailer 13€359 EUR
Retailer 7€368 EUR
Retailer 10€380 EUR
Retailer 3€427 EUR
Retailer 14€510 EUR
Retailer 11€671 EUR
Retailer 17€672 EUR
Retailer 16€675 EUR
Retailer 9€721 EUR
Retailer 15€979 EUR

35 data points across 17 retailers

20 retailers€168 EUR to €1,830 EUR

A
Cheapest Retailer
-
€168 EUR
$188 USD
A
Retailer 2
-
€188 EUR
$210 USD
View
Final sale: no returns
A
Retailer 3
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€196 EUR
$219 USD
View
A
Retailer 4
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€209 EUR
$234 USD
View
A
Retailer 5
-
€209 EUR
$234 USD
View
Retailer 6
-
€232 EUR
$259 USD
View
Price last confirmed 36 days ago
A
Retailer 7
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€263 EUR
£231 GBP
View
A
Retailer 8
-
€353 EUR
View
A
Retailer 9
-
€359 EUR
ZAR 6,481 ZAR
View
A
Retailer 10
-
€368 EUR
$411 USD
View
A
Retailer 11
-
€380 EUR
£334 GBP
View
B+
Retailer 12
-
€427 EUR
$477 USD
View
B+
Retailer 13
-
€510 EUR
A$877 AUD
View
B+
Retailer 14
-
€531 EUR
$593 USD
View
B+
Retailer 15
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€671 EUR
$750 USD
View
B+
Retailer 16
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€672 EUR
$751 USD
View
Retailer 17
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€675 EUR
$754 USD
View
Price last confirmed 12 days ago
B
Retailer 18
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€721 EUR
$805 USD
View
B
Retailer 19
-
€979 EUR
£861 GBP
View
Most Expensive
B
Queensmith
LG591310915 · Oct 27
€1,830 EUR
£1,610 GBP
View
19 more retailers have this diamond
Prices start from €168 EURSave up to €1,662 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
1.28ct Heart
€168 EUR