Radiant|Lab Grown|IGI

4.27ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG804659339

Certificate IGI LG804659339

Diamond specifications and retailer prices

From $6,057 USD
Save $20,579 USD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $26,636 USD at With Clarity
View at With Clarity

About this 4.27ct lab-grown radiant diamond

This 4.27ct 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 LG804659339 or 804659339. Listed at 11 retailers, with prices from $6,057 to $26,636 at With Clarity, a $20,579 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

4.27
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.4°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659339
Dimensions11.40 × 8.19 × 5.32 mm
L/W Ratio1.39
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
11.40 mm8.19 mm4.27 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659339
Side View
Table 63.0%Crown 41.4°Girdle: MED-STKPavilion 33.2°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $6,654 USD|Low: $5,841 USD|High: $26,103 USD|Avg: $13,357 USD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
With Clarity
October 1, 2026
Retailer 9$6,057 USD
Retailer 1$6,654 USD
Retailer 6$7,718 USD
Retailer 5$8,104 USD
Retailer 2$8,397 USD
Retailer 8$10,738 USD
Retailer 3$12,807 USD
Retailer 4$16,872 USD
Retailer 7$22,107 USD
Retailer 10$23,180 USD
With Clarity$26,103 USD

34 data points across 11 retailers

11 retailers$6,057 USD to $26,636 USD

B+
Cheapest Retailer
-
$6,057 USD
B+
Retailer 2
-
$6,654 USD
View
B+
Retailer 3
-
$7,718 USD
View
B+
Retailer 4
-
$8,104 USD
£6,381 GBP
View
B+
Retailer 5
-
$8,397 USD
HK$65,600 HKD
View
B
Retailer 6
-
$10,738 USD
€10,227 EUR
View
B
Retailer 7
-
$12,807 USD
£10,084 GBP
View
B
Retailer 8
-
$16,872 USD
View
C
Retailer 9
-
$22,107 USD
View
C
Retailer 10
-
$23,180 USD
View
Most Expensive
C
With Clarity
804659339 · Sep 30
$26,636 USD
View
10 more retailers have this diamond
Prices start from $6,057 USDSave up to $20,579 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.

B+
4.27ct Radiant
$6,057 USD