Radiant|Lab Grown|IGI

4.51ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804665115

Certificate IGI LG804665115

Diamond specifications and retailer prices

From $5,905 USD
Save $32,935 USD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $38,840 USD at Do Amore Diamonds
View at Do Amore Diamonds

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804665115 or 804665115. Listed at 10 retailers, with prices from $5,905 to $38,840 at Do Amore Diamonds, a $32,935 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.6°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665115
Dimensions11.53 × 8.22 × 5.41 mm
L/W Ratio1.40
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
11.53 mm8.22 mm4.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665115
Side View
Table 63.0%Crown 45.6°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 65.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $38,840 USD|Low: $4,815 USD|High: $41,410 USD|Avg: $15,161 USD|-6.2%
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
October 1, 2026
Retailer 9$5,905 USD
Retailer 10$6,199 USD
Retailer 8$6,550 USD
Retailer 12$6,741 USD
Retailer 6$8,364 USD
Retailer 11$8,980 USD
Retailer 2$11,822 USD
Retailer 4$13,100 USD
Retailer 7$14,627 USD
Retailer 3$19,003 USD
Retailer 13$25,030 USD
Retailer 5$29,804 USD
Do Amore Diamonds$38,840 USD

14 data points across 13 retailers

10 retailers$5,905 USD to $38,840 USD

A
Cheapest Retailer
-
$5,905 USD
A
Retailer 2
-
$6,199 USD
View
A
Retailer 3
-
$6,550 USD
View
A
Retailer 4
-
$6,741 USD
View
A
Retailer 5
-
$8,364 USD
View
A
Retailer 6
-
$8,980 USD
View
B+
Retailer 7
-
$11,822 USD
€11,259 EUR
View
B+
Retailer 8
-
$14,627 USD
£11,517 GBP
View
B
Retailer 9
-
$25,030 USD
View
Most Expensive
B
Do Amore Diamonds
27-D2FAC1B58 · Sep 30
$38,840 USD
View
9 more retailers have this diamond
Prices start from $5,905 USDSave up to $32,935 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 Radiant
$5,905 USD