Oval|Lab Grown|IGI

4.51ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG828662992

Certificate IGI LG828662992

Diamond specifications and retailer prices

From $4,225 USD
Save $19,905 USD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $24,130 USD at Do Amore Diamonds
View at Do Amore Diamonds

About this 4.51ct lab-grown oval diamond

This 4.51ct lab-grown oval 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 LG828662992 or 828662992. Listed at 10 retailers, with prices from $4,225 to $24,130 at Do Amore Diamonds, a $19,905 spread on the same certified stone. 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 angle36.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828662992
Dimensions12.88 × 9.22 × 5.89 mm
L/W Ratio1.40
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
12.88 mm9.22 mm4.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828662992
Side View
Table 60.0%Crown 36.5°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 63.9%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $24,130 USD|Low: $4,225 USD|High: $24,130 USD|Avg: $10,745 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 4$4,225 USD
Retailer 7$5,462 USD
Retailer 5$5,726 USD
Retailer 8$7,779 USD
Retailer 2$9,735 USD
Retailer 6$9,768 USD
Retailer 3$17,189 USD
Retailer 10$17,570 USD
Retailer 9$20,017 USD
Do Amore Diamonds$24,130 USD

10 data points across 10 retailers

10 retailers$4,225 USD to $24,130 USD

A
Cheapest Retailer
-
$4,225 USD
A
Retailer 2
-
$5,462 USD
View
A
Retailer 3
-
$5,726 USD
View
B+
Retailer 4
-
$7,779 USD
View
Price last confirmed 17 days ago
B
Retailer 5
-
$9,735 USD
£7,665 GBP
View
B
Retailer 6
-
$9,768 USD
A$15,027 AUD
View
B
Retailer 7
-
$17,189 USD
A$26,444 AUD
View
B
Retailer 8
-
$17,570 USD
View
Price last confirmed 14 days ago
B
Retailer 9
-
$20,017 USD
View
Price last confirmed 19 days ago
Most Expensive
C
Do Amore Diamonds
27-C7ABCD0C3 · Sep 30
$24,130 USD
View
9 more retailers have this diamond
Prices start from $4,225 USDSave up to $19,905 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.

A
4.51ct Oval
$4,225 USD