Radiant|Lab Grown|IGI

6.25ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG839671622

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

Certificate IGI LG839671622

Diamond specifications and retailer prices

From $1,211 USD
As of October 29, 2026
Save $2,292 USD (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $14,840 USD at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 6.25ct lab-grown radiant diamond

This 6.25ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839671622 or 839671622. Listed at 5 retailers as of October 29, 2026, with a 189% 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

6.25
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839671622
Dimensions13.06 × 9.01 × 6.03 mm
L/W Ratio1.45
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.06 mm9.01 mm6.25 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839671622
Side View
Table 68.0%Crown 47.2°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 66.9%

Caratlytics Score

How it works →
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 29
Current: $3,503 USD|Low: $1,211 USD|High: $5,810 USD|Avg: $2,736 USD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2$1,211 USD
Retailer 3$1,626 USD
Retailer 5$1,876 USD
Retailer 1$3,503 USD
Retailer 4$5,810 USD

7 data points across 5 retailers

5 retailers$1,211 USD to $3,503 USD

A
Cheapest Retailer
-
$1,211 USD
Final sale: no returns
B+
Retailer 2
-
$1,626 USD
View
B+
Retailer 3
-
$3,503 USD
View
Retailer 4
-
$5,810 USD
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
21601184A · Oct 1
$14,840 USD
View
Price under review
4 more retailers have this diamond
Prices start from $1,211 USDSave up to $2,292 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
6.25ct Radiant
$1,211 USD