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Round|Lab Grown|IGI

4.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754594164

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754594164

Diamond specifications and retailer prices

From €2,425 EUR
$2,709 USD
As of October 29, 2026
Save €14,260 EUR (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €16,684 EUR at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.51ct lab-grown round diamond

This 4.51ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754594164 or 754594164. Listed at 16 retailers as of October 29, 2026, with prices from €2,425 to €16,684, a €14,260 spread on the same certified stone. Do Amore Diamonds lists it at €16,684. 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

4.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754594164
Dimensions10.70 × 10.74 × 6.45 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.70 mm10.74 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754594164
Side View
Table 58.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.2%

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 29
Current: €16,684 EUR|Low: €2,389 EUR|High: €24,740 EUR|Avg: €6,587 EUR|-2.6%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
October 31, 2026
Retailer 14€2,425 EUR
Retailer 3€2,639 EUR
Retailer 8€2,787 EUR
Retailer 15€2,795 EUR
Retailer 17€3,880 EUR
Retailer 12€3,903 EUR
Retailer 7€3,933 EUR
Retailer 16€4,128 EUR
Retailer 13€4,378 EUR
Retailer 2€5,056 EUR
Retailer 9€5,357 EUR
Retailer 4€6,431 EUR
Retailer 5€6,841 EUR
Retailer 11€7,913 EUR
Retailer 6€10,905 EUR
Retailer 10€12,728 EUR
Do Amore Diamonds€16,684 EUR

35 data points across 17 retailers

16 retailers€2,425 EUR to €16,684 EUR

A
Cheapest Retailer
-
€2,425 EUR
$2,709 USD
A
Retailer 2
-
€2,639 EUR
$2,948 USD
View
A
Retailer 3
-
€2,787 EUR
$3,114 USD
View
Final sale: no returns
A
Retailer 4
-
€2,795 EUR
$3,123 USD
View
A
Retailer 5
-
€3,880 EUR
$4,335 USD
View
A
Retailer 6
-
€3,903 EUR
$4,360 USD
View
A
Retailer 7
-
€3,933 EUR
$4,394 USD
View
A
Retailer 8
-
€4,128 EUR
$4,612 USD
View
A
Retailer 9
-
€4,378 EUR
$4,891 USD
View
A
Retailer 10
-
€5,056 EUR
View
B+
Retailer 11
-
€6,431 EUR
$7,185 USD
View
Retailer 12
-
€6,841 EUR
A$11,759 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
€7,913 EUR
£6,961 GBP
View
Retailer 14
-
€10,905 EUR
A$18,744 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
€12,728 EUR
$14,220 USD
View
Most Expensive
B
Do Amore Diamonds
27-EDBE1E8E5 · Oct 30
€16,684 EUR
$18,640 USD
View
15 more retailers have this diamond
Prices start from €2,425 EURSave up to €14,260 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
4.51ct Round
€2,425 EUR