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Heart|Lab Grown|IGI

0.78ct D IF Heart Lab Grown Diamond

EX • D/IF • IGI LG708585978

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG708585978

Diamond specifications and retailer prices

From €1,232 EUR
As of November 4, 2026
Save €1,190 EUR (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €6,044 EUR at Zales · As of November 4, 2026
View at Zales

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG708585978 or 708585978. Listed at 18 retailers as of November 2, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.78
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG708585978
Dimensions6.27 × 5.61 × 3.81 mm
L/W Ratio1.12
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
6.27 mm5.61 mm0.78 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG708585978
Side View
Table 61.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €5,580 EUR|Low: €888 EUR|High: €6,479 EUR|Avg: €3,382 EUR|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Zales
November 5, 2026
Retailer 10€1,232 EUR
Retailer 8€1,427 EUR
Retailer 11€1,530 EUR
Retailer 14€1,665 EUR
Retailer 15€1,712 EUR
Retailer 3€1,714 EUR
Retailer 17€1,775 EUR
Retailer 4€1,931 EUR
Retailer 6€2,263 EUR
Retailer 5€2,422 EUR
Retailer 12€3,673 EUR
Retailer 16€3,802 EUR
Retailer 7€4,900 EUR
Retailer 13€5,313 EUR
Retailer 18€5,334 EUR
Retailer 1€5,580 EUR
Retailer 2€6,044 EUR
Zales€6,044 EUR
Retailer 9€6,239 EUR

37 data points across 19 retailers

18 retailers€1,232 EUR to €2,422 EUR

B+
Cheapest Retailer
-
€1,232 EUR
Retailer 2
-
€1,427 EUR
View
Price last confirmed 28 days ago
B+
Retailer 3
-
€1,530 EUR
View
B
Retailer 4
-
€1,665 EUR
View
B
Retailer 5
-
€1,712 EUR
View
B
Retailer 6
-
€1,714 EUR
View
Final sale: no returns
B
Retailer 7
-
€1,775 EUR
View
B
Retailer 8
-
€1,931 EUR
View
B
Retailer 9
-
€2,263 EUR
View
B
Retailer 10
-
€2,422 EUR
View
Retailer 11
-
€3,673 EUR
View
Price under review
Retailer 12
-
€3,802 EUR
View
Price under review
Most Expensive
Zales
524692174 · Nov 4
€6,044 EUR
$6,810 USD
View
Price under review
12 more retailers have this diamond
Prices start from €1,232 EURSave up to €1,190 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.

B+
0.78ct Heart
€1,232 EUR