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Radiant|Lab Grown|IGI

6.18ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG626448502

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

Certificate IGI LG626448502

Diamond specifications and retailer prices

From $840 USD
As of October 30, 2026
Save $4,520 USD (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $5,360 USD at Brilliant Earth · As of October 31, 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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG626448502 or 626448502. Listed at 24 retailers as of October 30, 2026, with prices from $840 to $5,360, a $4,520 spread on the same certified stone. Brilliant Earth lists it at $5,360. 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
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626448502
Dimensions13.39 × 9.04 × 5.95 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
13.39 mm9.04 mm6.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626448502
Side View
Table 61.0%Crown 44°Girdle: MED-STKPavilion 34.8°Culet: NoneDepth 65.8%

Caratlytics Score

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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 30
Current: $5,360 USD|Low: $806 USD|High: $5,360 USD|Avg: $1,886 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 5$840 USD
Retailer 9$913 USD
Retailer 6$939 USD
Retailer 7$974 USD
Retailer 10$974 USD
Retailer 18$1,048 USD
Retailer 19$1,150 USD
Retailer 17$1,395 USD
Retailer 11$1,467 USD
Retailer 13$1,477 USD
Retailer 2$1,496 USD
Retailer 15$1,804 USD
Retailer 16$1,884 USD
Retailer 14$1,991 USD
Retailer 8$2,738 USD
Retailer 4$3,047 USD
Retailer 3$3,084 USD
Retailer 12$3,650 USD
Brilliant Earth$5,360 USD

44 data points across 19 retailers

24 retailers$840 USD to $5,360 USD

A
Cheapest Retailer
-
$840 USD
A
Retailer 2
-
$913 USD
View
A
Retailer 3
-
$939 USD
View
Final sale: no returns
A
Retailer 4
-
$974 USD
View
Retailer 5
-
$974 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$1,048 USD
£825 GBP
View
Price last confirmed 16 days ago
A
Retailer 7
-
$1,150 USD
View
B+
Retailer 8
-
$1,395 USD
View
A
Retailer 9
-
$1,467 USD
View
A
Retailer 10
-
$1,477 USD
€1,407 EUR
View
A
Retailer 11
-
$1,496 USD
£1,178 GBP
View
A
Retailer 12
-
$1,804 USD
A$2,776 AUD
View
A
Retailer 13
-
$1,884 USD
ZAR 30,441 ZAR
View
A
Retailer 14
-
$1,991 USD
View
B+
Retailer 15
-
$2,344 USD
View
B+
Retailer 16
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$2,366 USD
View
B+
Retailer 17
-
$2,697 USD
£2,124 GBP
View
B+
Retailer 18
-
$2,738 USD
View
B+
Retailer 19
-
$3,047 USD
View
B+
Retailer 20
-
$3,084 USD
View
B+
Retailer 21
-
$3,375 USD
View
B+
Retailer 22
-
$3,650 USD
£2,874 GBP
View
B
Retailer 23
-
$4,658 USD
View
Most Expensive
B
Brilliant Earth
9517148A · Oct 31
$5,360 USD
View
23 more retailers have this diamond
Prices start from $840 USDSave up to $4,520 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
6.18ct Radiant
$840 USD