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Radiant|Lab Grown|IGI

1.86ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG506191278

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

Certificate IGI LG506191278

Diamond specifications and retailer prices

From $3,129 CAD
$2,240 USD
As of October 29, 2026
Save $2,229 CAD (42%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $7,860 CAD at Cape Diamonds · As of October 29, 2026
View at Cape Diamonds

About this 1.86ct lab-grown radiant diamond

This 1.86ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG506191278 or 506191278. Listed at 18 retailers as of October 29, 2026, with a 71% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.86
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.7°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG506191278
Dimensions8.05 × 6.07 × 4.29 mm
L/W Ratio1.33
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
8.05 mm6.07 mm1.86 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG506191278
Side View
Table 66.0%Crown 45.7°Girdle: STK-THKPavilion 31.3°Culet: NoneDepth 70.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $7,860 CAD|Low: $3,129 CAD|High: $11,601 CAD|Avg: $6,349 CAD|+2.4%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 11$3,129 CAD
Retailer 13$3,686 CAD
Retailer 5$4,010 CAD
Retailer 7$4,126 CAD
Retailer 6$4,276 CAD
Retailer 14$4,276 CAD
Retailer 2$5,358 CAD
Retailer 8$5,775 CAD
Retailer 4$5,877 CAD
Retailer 12$6,273 CAD
Retailer 3$6,658 CAD
Cape Diamonds$7,860 CAD
Retailer 10$10,663 CAD
Retailer 15$11,417 CAD
Retailer 9$11,510 CAD

41 data points across 15 retailers

18 retailers$3,129 CAD to $5,358 CAD

B
Cheapest Retailer
-
$3,129 CAD
$2,240 USD
B
Retailer 2
-
$3,686 CAD
$2,639 USD
View
B
Retailer 3
-
$4,010 CAD
$2,871 USD
View
B
Retailer 4
-
$4,126 CAD
$2,954 USD
View
Final sale: no returns
Retailer 5
-
$4,276 CAD
$3,061 USD
View
Price last confirmed 18 days ago
B
Retailer 6
-
$4,276 CAD
$3,061 USD
View
B
Retailer 7
-
$4,505 CAD
$3,225 USD
View
B
Retailer 8
-
$5,358 CAD
£3,020 GBP
View
Retailer 9
-
$5,775 CAD
£3,255 GBP
View
Price under review
Retailer 10
-
$5,877 CAD
$4,207 USD
View
Price under review
Retailer 11
-
$6,273 CAD
$4,491 USD
View
Price under review
Retailer 12
-
$6,658 CAD
$4,766 USD
View
Price under review
Most Expensive
Cape Diamonds
cert_506191278 · Oct 29
$7,860 CAD
ZAR 90,906 ZAR
View
Price under review
12 more retailers have this diamond
Prices start from $3,129 CADSave up to $2,229 CAD

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.

B
1.86ct Radiant
$3,129 CAD