Radiant|Lab Grown|IGI

5.17ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804665318

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG804665318

Diamond specifications and retailer prices

From $9,107 USD
As of October 30, 2026
Save $9,726 USD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,563 USD at Yorxs · As of October 23, 2026
View at Yorxs

About this 5.17ct lab-grown radiant diamond

This 5.17ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804665318 or 804665318. Listed at 14 retailers as of October 29, 2026, with a 107% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.17
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804665318
Dimensions11.98 × 8.54 × 5.82 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
11.98 mm8.54 mm5.17 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804665318
Side View
Table 59.0%Crown 38.8°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 68.1%

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 30
Current: $17,410 USD|Low: $9,107 USD|High: $61,490 USD|Avg: $17,932 USD|-40.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Yorxs
October 30, 2026
Retailer 8$9,107 USD
Retailer 10$9,162 USD
Retailer 4$9,278 USD
Retailer 3$9,471 USD
Retailer 13$10,455 USD
Retailer 2$10,928 USD
Retailer 11$11,564 USD
Retailer 9$12,217 USD
Retailer 7$12,220 USD
Retailer 5$12,290 USD
Retailer 1$17,410 USD
Retailer 6$18,833 USD
Yorxs$20,563 USD
Retailer 12$56,830 USD

36 data points across 14 retailers

14 retailers$9,107 USD to $18,833 USD

A
Cheapest Retailer
-
$9,107 USD
A
Retailer 2
-
$9,162 USD
View
A
Retailer 3
-
$9,278 USD
View
A
Retailer 4
-
$9,471 USD
View
A
Retailer 5
-
$10,455 USD
View
A
Retailer 6
-
$10,928 USD
View
A
Retailer 7
-
$11,564 USD
View
A
Retailer 8
-
$12,217 USD
View
A
Retailer 9
-
$12,220 USD
View
A
Retailer 10
-
$12,290 USD
View
Final sale: no returns
A
Retailer 11
-
$17,410 USD
View
B+
Retailer 12
-
$18,833 USD
£14,829 GBP
View
Most Expensive
Yorxs
557461931 · Oct 23
$20,563 USD
€19,584 EUR
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $9,107 USDSave up to $9,726 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
5.17ct Radiant
$9,107 USD