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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 $2,149 NZD
$1,211 USD
As of October 29, 2026
Save $4,067 NZD (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $26,331 NZD 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,216 NZD|Low: $2,149 NZD|High: $10,309 NZD|Avg: $4,854 NZD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2$2,149 NZD
Retailer 3$2,885 NZD
Retailer 5$3,329 NZD
Retailer 1$6,216 NZD
Retailer 4$10,309 NZD

7 data points across 5 retailers

5 retailers$2,149 NZD to $6,216 NZD

A
Cheapest Retailer
-
$2,149 NZD
$1,211 USD
Final sale: no returns
B+
Retailer 2
-
$2,885 NZD
$1,626 USD
View
B+
Retailer 3
-
$6,216 NZD
$3,503 USD
View
Retailer 4
-
$10,309 NZD
$5,810 USD
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
21601184A · Oct 1
$26,331 NZD
$14,840 USD
View
Price under review
4 more retailers have this diamond
Prices start from $2,149 NZDSave up to $4,067 NZD

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
$2,149 NZD