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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 €193 EUR
$216 USD
As of October 30, 2026
Save €856 EUR (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,049 EUR at Reve Diamonds · As of November 1, 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 October 30, 2026, with prices from €193 to €1,049, a €856 spread on the same certified stone. Reve Diamonds lists it at €1,049. 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
Color
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: Oct 30
Current: €1,003 EUR|Low: €137 EUR|High: €1,049 EUR|Avg: €508 EUR
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 1, 2026
Retailer 3€193 EUR
Retailer 12€215 EUR
Retailer 11€303 EUR
Retailer 10€320 EUR
Retailer 6€365 EUR
Retailer 7€388 EUR
Retailer 5€388 EUR
Retailer 2€454 EUR
Retailer 8€547 EUR
Retailer 9€692 EUR
Retailer 4€737 EUR
Retailer 1€1,003 EUR
Reve Diamonds€1,049 EUR

34 data points across 13 retailers

18 retailers€193 EUR to €1,049 EUR

Retailer 1
-
€173 EUR
$193 USD
Price last confirmed 24 days ago
A
Retailer 2
-
€193 EUR
$216 USD
View
Final sale: no returns
Retailer 3
-
€201 EUR
$224 USD
View
Price last confirmed 33 days ago
Retailer 4
-
€211 EUR
$236 USD
View
Price last confirmed 37 days ago
Retailer 5
-
€215 EUR
$240 USD
View
Price last confirmed 29 days ago
Retailer 6
-
€215 EUR
$240 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
€303 EUR
$338 USD
View
A
Retailer 8
-
€320 EUR
$357 USD
View
B+
Retailer 9
-
€365 EUR
View
B+
Retailer 10
-
€388 EUR
ZAR 6,995 ZAR
View
B+
Retailer 11
-
€388 EUR
£341 GBP
View
B+
Retailer 12
-
€454 EUR
$507 USD
View
B+
Retailer 13
-
€547 EUR
A$941 AUD
View
Retailer 14
-
€689 EUR
$770 USD
View
Price last confirmed 31 days ago
B
Retailer 15
-
€692 EUR
$773 USD
View
B
Retailer 16
-
€737 EUR
$824 USD
View
B
Retailer 17
-
€1,003 EUR
£882 GBP
View
Most Expensive
B
Reve Diamonds
AECDB604D · Nov 1
€1,049 EUR
$1,172 USD
View
17 more retailers have this diamond
Prices start from €193 EURSave up to €856 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
€193 EUR