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Radiant|Lab Grown|IGI

6.18ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG627406053

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

Certificate IGI LG627406053

Diamond specifications and retailer prices

From $784 USD
As of October 30, 2026
Save $4,876 USD (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,660 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 LG627406053 or 627406053. Listed at 21 retailers as of October 30, 2026, with prices from $784 to $5,660, a $4,876 spread on the same certified stone. Brilliant Earth lists it at $5,660. 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 angle33.7°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627406053
Dimensions13.05 × 9.03 × 6.09 mm
L/W Ratio1.45
Culet sizePointed
Top View
13.05 mm9.03 mm6.18 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627406053
Side View
Table 64.0%Crown 33.7°Girdle: MediumPavilion 35.3°Culet: NoneDepth 67.4%

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 30
Current: $5,660 USD|Low: $774 USD|High: $5,840 USD|Avg: $2,073 USD|-2.9%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
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Retailer 21
Retailer 22
November 2, 2026
Retailer 4$784 USD
Retailer 21$853 USD
Retailer 9$876 USD
Retailer 6$909 USD
Retailer 12$909 USD
Retailer 16$973 USD
Retailer 20$1,085 USD
Retailer 2$1,394 USD
Retailer 7$1,406 USD
Retailer 10$1,468 USD
Retailer 17$1,494 USD
Retailer 18$1,684 USD
Retailer 19$1,759 USD
Retailer 3$2,162 USD
Retailer 8$2,325 USD
Retailer 22$2,556 USD
Retailer 11$2,914 USD
Retailer 14$3,072 USD
Retailer 15$3,141 USD
Retailer 13$3,407 USD
Retailer 5$4,090 USD
Brilliant Earth$5,660 USD

32 data points across 22 retailers

21 retailers$784 USD to $5,660 USD

A
Cheapest Retailer
-
$784 USD
A
Retailer 2
-
$853 USD
View
A
Retailer 3
-
$909 USD
View
Retailer 4
-
$909 USD
View
Price last confirmed 22 days ago
A
Retailer 5
-
$973 USD
£766 GBP
View
A
Retailer 6
-
$1,085 USD
View
A
Retailer 7
-
$1,394 USD
£1,097 GBP
View
A
Retailer 8
-
$1,406 USD
View
B+
Retailer 9
-
$1,468 USD
View
A
Retailer 10
-
$1,494 USD
€1,423 EUR
View
A
Retailer 11
-
$1,684 USD
A$2,591 AUD
View
A
Retailer 12
-
$1,759 USD
ZAR 28,411 ZAR
View
B+
Retailer 13
-
$2,162 USD
View
B+
Retailer 14
-
$2,325 USD
View
B+
Retailer 15
-
$2,556 USD
View
Retailer 16
-
$2,914 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$3,072 USD
View
B+
Retailer 18
-
$3,141 USD
View
B+
Retailer 19
-
$3,407 USD
£2,683 GBP
View
B
Retailer 20
-
$4,090 USD
View
Most Expensive
B
Brilliant Earth
9815203A · Oct 31
$5,660 USD
View
20 more retailers have this diamond
Prices start from $784 USDSave up to $4,876 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
$784 USD