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Heart|Lab Grown|IGI

1.55ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG631464178

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG631464178

Diamond specifications and retailer prices

From €236 EUR
As of November 4, 2026
Save €1,235 EUR (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €2,412 EUR at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.55ct lab-grown heart diamond

This 1.55ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG631464178 or 631464178. Listed at 25 retailers as of October 30, 2026, with a 523% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG631464178
Dimensions6.97 × 8.06 × 4.77 mm
L/W Ratio1.16
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
6.97 mm8.06 mm1.55 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG631464178
Side View
Table 62.0%Crown 35.1°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 59.2%

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: Nov 4
Current: €551 EUR|Low: €229 EUR|High: €1,811 EUR|Avg: €726 EUR|-0.3%
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Retailer 22
November 5, 2026
Retailer 5€236 EUR
Retailer 8€264 EUR
Retailer 2€273 EUR
Retailer 4€293 EUR
Retailer 9€293 EUR
Retailer 10€395 EUR
Retailer 22€435 EUR
Retailer 19€504 EUR
Retailer 1€551 EUR
Retailer 21€570 EUR
Retailer 7€593 EUR
Retailer 3€630 EUR
Retailer 18€684 EUR
Retailer 16€711 EUR
Retailer 17€899 EUR
Retailer 6€941 EUR
Retailer 14€985 EUR
Retailer 13€1,126 EUR
Retailer 12€1,168 EUR
Retailer 11€1,245 EUR
Retailer 20€1,472 EUR
Retailer 15€1,811 EUR

41 data points across 22 retailers

25 retailers€236 EUR to €1,472 EUR

A
Cheapest Retailer
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€236 EUR
A
Retailer 2
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€264 EUR
View
Final sale: no returns
A
Retailer 3
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€273 EUR
View
A
Retailer 4
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€293 EUR
View
Retailer 5
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€293 EUR
View
Price last confirmed 11 days ago
B+
Retailer 6
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€395 EUR
View
A
Retailer 7
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€435 EUR
View
A
Retailer 8
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€504 EUR
View
B+
Retailer 9
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€551 EUR
View
B+
Retailer 10
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€570 EUR
View
B+
Retailer 11
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€593 EUR
View
B+
Retailer 12
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€630 EUR
View
B+
Retailer 13
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€684 EUR
View
B+
Retailer 14
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€711 EUR
View
B+
Retailer 15
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€750 EUR
View
B+
Retailer 16
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€899 EUR
View
B
Retailer 17
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€941 EUR
View
B
Retailer 18
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€948 EUR
View
B
Retailer 19
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€985 EUR
View
Retailer 20
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€1,126 EUR
View
Price last confirmed 10 days ago
B+
Retailer 21
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€1,168 EUR
View
B
Retailer 22
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€1,245 EUR
View
B
Retailer 23
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€1,472 EUR
View
Retailer 24
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€1,811 EUR
View
Price last confirmed 9 days ago
Most Expensive
Queensmith
LG631464178 · Oct 27
€2,412 EUR
£2,140 GBP
View
Price last confirmed 8 days ago
24 more retailers have this diamond
Prices start from €236 EURSave up to €1,235 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
1.55ct Heart
€236 EUR