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Heart|Lab Grown|IGI

5.66ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG766685053

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG766685053

Diamond specifications and retailer prices

From €10,413 EUR
$11,679 USD
As of November 2, 2026
Save €36,235 EUR (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €46,647 EUR at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 5.66ct lab-grown heart diamond

This 5.66ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG766685053 or 766685053. Listed at 10 retailers as of November 2, 2026, with prices from €10,413 to €46,647, a €36,235 spread on the same certified stone. Do Amore Diamonds lists it at €46,647. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.66
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766685053
Dimensions12.31 × 10.96 × 7.00 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
12.31 mm10.96 mm5.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766685053
Side View
Table 58.0%Crown 40°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 56.9%

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: Nov 2
Current: €46,647 EUR|Low: €10,070 EUR|High: €47,227 EUR|Avg: €18,900 EUR|-1.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13€10,413 EUR
Retailer 10€10,829 EUR
Retailer 8€10,947 EUR
Retailer 11€11,907 EUR
Retailer 12€12,495 EUR
Retailer 7€12,816 EUR
Retailer 9€12,882 EUR
Retailer 4€13,369 EUR
Retailer 3€18,612 EUR
Retailer 2€19,514 EUR
Retailer 6€20,061 EUR
Retailer 5€32,521 EUR
Do Amore Diamonds€46,647 EUR

21 data points across 13 retailers

10 retailers€10,413 EUR to €46,647 EUR

A
Cheapest Retailer
-
€10,413 EUR
$11,679 USD
A
Retailer 2
-
€10,829 EUR
$12,146 USD
View
A
Retailer 3
-
€10,947 EUR
$12,278 USD
View
A
Retailer 4
-
€11,907 EUR
$13,355 USD
View
A
Retailer 5
-
€12,495 EUR
$14,014 USD
View
A
Retailer 6
-
€12,816 EUR
$14,374 USD
View
A
Retailer 7
-
€12,882 EUR
$14,449 USD
View
A
Retailer 8
-
€19,514 EUR
£17,234 GBP
View
A
Retailer 9
-
€20,061 EUR
$22,500 USD
View
Most Expensive
B
Do Amore Diamonds
27-833E14C11 · Nov 2
€46,647 EUR
$52,320 USD
View
9 more retailers have this diamond
Prices start from €10,413 EURSave up to €36,235 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
5.66ct Heart
€10,413 EUR