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Round|Lab Grown|IGI

4.50ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG833644315

Shape and cutting style on the report: Round brilliant

Certificate IGI LG833644315

Diamond specifications and retailer prices

From €3,082 EUR
$3,443 USD
As of October 29, 2026
Save €13,066 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €16,147 EUR at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 4.5ct lab-grown round diamond

This 4.5ct 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 LG833644315 or 833644315. Listed at 18 retailers as of October 29, 2026, with prices from €3,082 to €16,147, a €13,066 spread on the same certified stone. Brilliant Earth lists it at €16,147. 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

4.50
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833644315
Dimensions10.51 × 10.56 × 6.55 mm
L/W Ratio1.00
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
10.51 mm10.56 mm4.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833644315
Side View
Table 56.0%Crown 34.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €16,147 EUR|Low: €3,082 EUR|High: €16,147 EUR|Avg: €5,450 EUR
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 15€3,082 EUR
Retailer 7€3,353 EUR
Retailer 6€3,451 EUR
Retailer 4€3,575 EUR
Retailer 12€3,576 EUR
Retailer 13€4,170 EUR
Retailer 5€4,467 EUR
Retailer 9€4,754 EUR
Retailer 16€4,931 EUR
Retailer 14€5,140 EUR
Retailer 2€5,710 EUR
Retailer 10€7,608 EUR
Retailer 3€7,667 EUR
Retailer 8€7,764 EUR
Retailer 11€12,068 EUR
Brilliant Earth€16,147 EUR

22 data points across 16 retailers

18 retailers€3,082 EUR to €16,147 EUR

A
Cheapest Retailer
-
€3,082 EUR
$3,443 USD
A
Retailer 2
-
€3,353 EUR
$3,746 USD
View
A
Retailer 3
-
€3,451 EUR
$3,856 USD
View
Final sale: no returns
A
Retailer 4
-
€3,575 EUR
$3,994 USD
View
A
Retailer 5
-
€3,576 EUR
$3,995 USD
View
Retailer 6
-
€3,673 EUR
$4,104 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
€4,170 EUR
HK$36,400 HKD
View
A
Retailer 8
-
€4,467 EUR
$4,991 USD
View
A
Retailer 9
-
€4,754 EUR
£4,182 GBP
View
A
Retailer 10
-
€4,931 EUR
$5,509 USD
View
A
Retailer 11
-
€5,140 EUR
$5,742 USD
View
A
Retailer 12
-
€5,710 EUR
View
B+
Retailer 13
-
€7,608 EUR
ZAR 137,313 ZAR
View
B+
Retailer 14
-
€7,667 EUR
£6,745 GBP
View
Retailer 15
-
€7,764 EUR
A$13,345 AUD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
€8,951 EUR
$10,000 USD
View
B+
Retailer 17
-
€12,068 EUR
SGD 18,219 SGD
View
Most Expensive
B
Brilliant Earth
21360248A · Oct 30
€16,147 EUR
$18,040 USD
View
17 more retailers have this diamond
Prices start from €3,082 EURSave up to €13,066 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
4.50ct Round
€3,082 EUR