Heart|Lab Grown|IGI

0.51ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG840620855

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840620855

Diamond specifications and retailer prices

From €164 EUR
$182 USD
As of October 27, 2026
Save €858 EUR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,021 EUR at Reve Diamonds · As of October 30, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840620855 or 840620855. Listed at 13 retailers as of October 27, 2026, with prices from €164 to €1,021, a €858 spread on the same certified stone. Reve Diamonds lists it at €1,021. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840620855
Dimensions5.05 × 5.54 × 3.11 mm
L/W Ratio1.10
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
5.05 mm5.54 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840620855
Side View
Table 61.0%Crown 35.9°Girdle: THN-STKPavilion 38.7°Culet: NoneDepth 56.1%

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: Oct 27
Current: €366 EUR|Low: €164 EUR|High: €1,021 EUR|Avg: €427 EUR|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 30, 2026
Retailer 11€164 EUR
Retailer 6€182 EUR
Retailer 8€190 EUR
Retailer 7€286 EUR
Retailer 10€311 EUR
Retailer 4€350 EUR
Retailer 1€366 EUR
Retailer 9€367 EUR
Retailer 2€425 EUR
Retailer 3€701 EUR
Retailer 5€954 EUR
Reve Diamonds€1,021 EUR

5 data points across 12 retailers

13 retailers€164 EUR to €1,021 EUR

A
Cheapest Retailer
-
€164 EUR
$182 USD
A
Retailer 2
-
€182 EUR
$203 USD
View
Final sale: no returns
A
Retailer 3
-
€190 EUR
$211 USD
View
A
Retailer 4
-
€286 EUR
$318 USD
View
B+
Retailer 5
-
€311 EUR
$346 USD
View
B+
Retailer 6
-
€350 EUR
View
B+
Retailer 7
-
€366 EUR
£321 GBP
View
B+
Retailer 8
-
€367 EUR
ZAR 6,596 ZAR
View
B+
Retailer 9
-
€425 EUR
$473 USD
View
B
Retailer 10
-
€521 EUR
$580 USD
View
B
Retailer 11
-
€701 EUR
$780 USD
View
B
Retailer 12
-
€954 EUR
£836 GBP
View
Most Expensive
B
Reve Diamonds
D83AA3E1D · Oct 30
€1,021 EUR
$1,137 USD
View
12 more retailers have this diamond
Prices start from €164 EURSave up to €858 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
€164 EUR