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Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG662412809

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG662412809

Diamond specifications and retailer prices

From €194 EUR
As of November 4, 2026
Save €921 EUR (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €1,115 EUR at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG662412809 or 662412809. Listed at 19 retailers as of November 4, 2026, with prices from €194 to €1,115, a €921 spread on the same certified stone. Reve Diamonds lists it at €1,115. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662412809
Dimensions7.57 × 6.43 × 4.51 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.57 mm6.43 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662412809
Side View
Table 55.0%Crown 34.3°Girdle: MediumPavilion 39.6°Culet: NoneDepth 59.6%

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: Nov 4
Current: €319 EUR|Low: €194 EUR|High: €1,127 EUR|Avg: €551 EUR|+8.8%
Retailer 1
Retailer 2
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Retailer 11
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Retailer 18
Reve Diamonds
November 5, 2026
Retailer 15€194 EUR
Retailer 17€217 EUR
Retailer 4€225 EUR
Retailer 13€241 EUR
Retailer 8€246 EUR
Retailer 1€319 EUR
Retailer 3€412 EUR
Retailer 6€424 EUR
Retailer 12€432 EUR
Retailer 14€443 EUR
Retailer 9€528 EUR
Retailer 5€601 EUR
Retailer 10€699 EUR
Retailer 11€748 EUR
Retailer 16€774 EUR
Retailer 2€777 EUR
Retailer 18€821 EUR
Retailer 7€984 EUR
Reve Diamonds€1,115 EUR

35 data points across 19 retailers

19 retailers€194 EUR to €1,115 EUR

A
Cheapest Retailer
-
€194 EUR
A
Retailer 2
-
€217 EUR
View
Final sale: no returns
A
Retailer 3
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€225 EUR
View
A
Retailer 4
-
€241 EUR
View
Retailer 5
-
€246 EUR
View
Price last confirmed 12 days ago
A
Retailer 6
-
€319 EUR
View
B+
Retailer 7
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€412 EUR
View
B+
Retailer 8
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€424 EUR
View
B+
Retailer 9
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€432 EUR
View
B+
Retailer 10
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€443 EUR
View
B+
Retailer 11
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€528 EUR
View
B+
Retailer 12
-
€601 EUR
View
B
Retailer 13
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€699 EUR
View
B
Retailer 14
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€748 EUR
View
B
Retailer 15
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€774 EUR
View
B
Retailer 16
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€777 EUR
View
B
Retailer 17
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€821 EUR
View
B
Retailer 18
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€984 EUR
View
Most Expensive
B
Reve Diamonds
50A7CF060 · Nov 4
€1,115 EUR
$1,251 USD
View
18 more retailers have this diamond
Prices start from €194 EURSave up to €921 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
1.23ct Heart
€194 EUR