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Oval|Lab Grown|IGI

4.50ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG745516776

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG745516776

Diamond specifications and retailer prices

From $604 USD
As of October 27, 2026
Save $3,186 USD (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $3,790 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 4.5ct lab-grown oval diamond

This 4.5ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG745516776 or 745516776. Listed at 19 retailers as of October 27, 2026, with prices from $604 to $3,790, a $3,186 spread on the same certified stone. Brilliant Earth lists it at $3,790. 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

4.50
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG745516776
Dimensions12.78 × 9.04 × 5.88 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.78 mm9.04 mm4.50 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG745516776
Side View
Table 57.0%Crown 36.7°Girdle: STK-THKPavilion 41.5°Culet: NoneDepth 65.0%

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: $3,790 USD|Low: $580 USD|High: $3,790 USD|Avg: $1,602 USD
Brilliant Earth
Retailer 2
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Retailer 12
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Retailer 19
October 29, 2026
Retailer 3$604 USD
Retailer 13$629 USD
Retailer 4$676 USD
Retailer 18$676 USD
Retailer 6$749 USD
Retailer 10$749 USD
Retailer 14$880 USD
Retailer 19$995 USD
Retailer 15$1,127 USD
Retailer 8$1,153 USD
Retailer 2$1,169 USD
Retailer 17$1,602 USD
Retailer 7$1,830 USD
Retailer 9$1,970 USD
Retailer 5$2,367 USD
Retailer 11$2,422 USD
Retailer 12$3,269 USD
Retailer 16$3,320 USD
Brilliant Earth$3,790 USD

37 data points across 19 retailers

19 retailers$604 USD to $3,790 USD

A
Cheapest Retailer
-
$604 USD
A
Retailer 2
-
$629 USD
£495 GBP
View
A
Retailer 3
-
$676 USD
View
Final sale: no returns
A
Retailer 4
-
$676 USD
View
A
Retailer 5
-
$749 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$749 USD
View
A
Retailer 7
-
$880 USD
View
B+
Retailer 8
-
$995 USD
View
A
Retailer 9
-
$1,127 USD
€1,073 EUR
View
B+
Retailer 10
-
$1,153 USD
View
B+
Retailer 11
-
$1,169 USD
£920 GBP
View
B+
Retailer 12
-
$1,602 USD
View
B+
Retailer 13
-
$1,830 USD
View
B
Retailer 14
-
$1,970 USD
View
B
Retailer 15
-
$2,367 USD
View
B
Retailer 16
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$2,422 USD
View
B
Retailer 17
-
$3,269 USD
£2,574 GBP
View
B
Retailer 18
-
$3,320 USD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
18205689A · Oct 29
$3,790 USD
View
18 more retailers have this diamond
Prices start from $604 USDSave up to $3,186 USD

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 Oval
$604 USD