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Radiant|Lab Grown|IGI

6.18ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG838624053

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

Certificate IGI LG838624053

Diamond specifications and retailer prices

From $2,143 NZD
$1,208 USD
As of October 31, 2026
Save $4,066 NZD (65%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $13,804 NZD at Brilliant Earth · As of September 30, 2026
View at Brilliant Earth

About this 6.18ct lab-grown radiant diamond

This 6.18ct 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 LG838624053 or 838624053. Listed at 4 retailers as of October 28, 2026, with a 190% 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

6.18
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838624053
Dimensions12.96 × 9.03 × 6.15 mm
L/W Ratio1.44
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.96 mm9.03 mm6.18 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838624053
Side View
Table 62.0%Crown 39.9°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.1%

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 31
Current: $2,143 NZD|Low: $2,143 NZD|High: $6,408 NZD|Avg: $3,705 NZD|-3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 28, 2026
Retailer 1$2,143 NZD
Retailer 3$2,885 NZD
Retailer 4$3,325 NZD
Retailer 2$6,209 NZD

8 data points across 4 retailers

4 retailers$2,143 NZD to $6,209 NZD

A
Cheapest Retailer
-
$2,143 NZD
$1,208 USD
Final sale: no returns
B+
Retailer 2
-
$2,885 NZD
$1,626 USD
View
B+
Retailer 3
-
$6,209 NZD
$3,499 USD
View
Most Expensive
Brilliant Earth
21551854A · Sep 30
$13,804 NZD
$7,780 USD
View
Price last confirmed 31 days ago
3 more retailers have this diamond
Prices start from $2,143 NZDSave up to $4,066 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
6.18ct Radiant
$2,143 NZD