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Heart|Lab Grown|IGI

0.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG818658796

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818658796

Diamond specifications and retailer prices

From €192 EUR
As of November 5, 2026
Save €852 EUR (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,044 EUR at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818658796 or 818658796. Listed at 18 retailers as of November 4, 2026, with prices from €192 to €1,044, a €852 spread on the same certified stone. Reve Diamonds lists it at €1,044. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658796
Dimensions5.54 × 5.07 × 3.12 mm
L/W Ratio1.09
Girdle conditionFaceted
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
5.54 mm5.07 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658796
Side View
Table 63.0%Crown 39.3°Girdle: STK-THKPavilion 37°Culet: NoneDepth 56.3%

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 5
Current: €385 EUR|Low: €192 EUR|High: €1,044 EUR|Avg: €507 EUR|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 5, 2026
Retailer 3€192 EUR
Retailer 12€214 EUR
Retailer 11€301 EUR
Retailer 10€318 EUR
Retailer 8€363 EUR
Retailer 1€385 EUR
Retailer 7€388 EUR
Retailer 2€451 EUR
Retailer 6€543 EUR
Retailer 9€689 EUR
Retailer 4€733 EUR
Retailer 5€994 EUR
Reve Diamonds€1,044 EUR

35 data points across 13 retailers

18 retailers€192 EUR to €1,044 EUR

Retailer 1
-
€172 EUR
Price last confirmed 28 days ago
A
Retailer 2
-
€192 EUR
View
Final sale: no returns
Retailer 3
-
€200 EUR
View
Price last confirmed 37 days ago
Retailer 4
-
€210 EUR
View
Price last confirmed 41 days ago
Retailer 5
-
€214 EUR
View
Price last confirmed 33 days ago
Retailer 6
-
€214 EUR
View
Price last confirmed 24 days ago
A
Retailer 7
-
€301 EUR
View
A
Retailer 8
-
€318 EUR
View
B+
Retailer 9
-
€363 EUR
View
B+
Retailer 10
-
€385 EUR
View
B+
Retailer 11
-
€388 EUR
View
B+
Retailer 12
-
€451 EUR
View
B+
Retailer 13
-
€543 EUR
View
Retailer 14
-
€686 EUR
View
Price last confirmed 36 days ago
B
Retailer 15
-
€689 EUR
View
B
Retailer 16
-
€733 EUR
View
B
Retailer 17
-
€994 EUR
View
Most Expensive
B
Reve Diamonds
AECDB604D · Nov 4
€1,044 EUR
$1,172 USD
View
17 more retailers have this diamond
Prices start from €192 EURSave up to €852 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
0.51ct Heart
€192 EUR