Radiant|Lab Grown|IGI

4.23ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784642676

Certificate IGI LG784642676

Diamond specifications and retailer prices

From $4,837 USD
Save $18,123 USD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $25,779 USD at With Clarity
View at With Clarity

About this 4.23ct lab-grown radiant diamond

This 4.23ct 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 LG784642676 or 784642676. Listed at 8 retailers, with a 375% 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

4.23
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784642676
Dimensions11.14 × 7.91 × 5.51 mm
L/W Ratio1.41
Culet sizePointed
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
11.14 mm7.91 mm4.23 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784642676
Side View
Table 64.0%Crown 41.1°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 69.7%

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: $9,408 USD|Low: $4,719 USD|High: $26,930 USD|Avg: $13,613 USD|-17.4%
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 6$4,837 USD
Retailer 5$4,854 USD
Retailer 4$7,156 USD
Retailer 7$8,500 USD
Retailer 1$9,408 USD
Retailer 2$11,402 USD
Retailer 3$11,937 USD
Retailer 9$13,809 USD
Retailer 8$22,960 USD
Retailer 10$24,840 USD
With Clarity$25,779 USD

13 data points across 11 retailers

8 retailers$4,837 USD to $22,960 USD

A
Cheapest Retailer
-
$4,837 USD
A
Retailer 2
-
$4,854 USD
View
A
Retailer 3
-
$7,156 USD
View
B+
Retailer 4
-
$8,500 USD
View
B+
Retailer 5
-
$9,408 USD
€8,960 EUR
View
B+
Retailer 6
-
$11,937 USD
£9,399 GBP
View
B
Retailer 7
-
$22,960 USD
View
Most Expensive
B
With Clarity
784642676 · Aug 12
$25,779 USD
View
Price last confirmed 50 days ago
7 more retailers have this diamond
Prices start from $4,837 USDSave up to $18,123 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
4.23ct Radiant
$4,837 USD