Radiant|Lab Grown|IGI

1.00ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG821643185

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

Certificate IGI LG821643185

Diamond specifications and retailer prices

From $167 USD
As of October 23, 2026
Save $1,624 USD (91%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,791 USD at Queensmith · As of October 25, 2026
View at Queensmith

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821643185 or 821643185. Listed at 21 retailers as of October 23, 2026, with prices from $167 to $1,791, a $1,624 spread on the same certified stone. Queensmith lists it at $1,791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821643185
Dimensions7.04 × 4.93 × 3.36 mm
L/W Ratio1.43
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.04 mm4.93 mm1.00 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821643185
Side View
Table 66.0%Crown 40.5°Girdle: MED-STKPavilion 37.7°Culet: NoneDepth 68.2%

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 23
Current: $504 USD|Low: $160 USD|High: $1,087 USD|Avg: $466 USD|-0.9%
Retailer 1
Retailer 2
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Retailer 5
Retailer 6
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
October 26, 2026
Retailer 4$167 USD
Retailer 2$186 USD
Retailer 8$193 USD
Retailer 6$207 USD
Retailer 9$207 USD
Retailer 17$277 USD
Retailer 16$344 USD
Retailer 14$349 USD
Retailer 11$355 USD
Retailer 1$504 USD
Retailer 10$523 USD
Retailer 18$544 USD
Retailer 15$560 USD
Retailer 13$593 USD
Retailer 7$664 USD
Retailer 5$860 USD
Retailer 12$968 USD
Retailer 3$1,087 USD

40 data points across 18 retailers

21 retailers$167 USD to $1,791 USD

A
Cheapest Retailer
-
$167 USD
A
Retailer 2
-
$193 USD
View
A
Retailer 3
-
$207 USD
View
A
Retailer 4
-
$207 USD
View
Retailer 5
-
$277 USD
£218 GBP
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$280 USD
View
A
Retailer 7
-
$333 USD
View
A
Retailer 8
-
$344 USD
€328 EUR
View
Retailer 9
-
$349 USD
ZAR 5,642 ZAR
View
Price last confirmed 7 days ago
A
Retailer 10
-
$355 USD
£279 GBP
View
B+
Retailer 11
-
$504 USD
A$775 AUD
View
B+
Retailer 12
-
$523 USD
View
B+
Retailer 13
-
$544 USD
View
B+
Retailer 14
-
$560 USD
View
B+
Retailer 15
-
$593 USD
A$913 AUD
View
B+
Retailer 16
-
$664 USD
View
B
Retailer 17
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$719 USD
View
B
Retailer 18
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$860 USD
View
B
Retailer 19
-
$968 USD
£762 GBP
View
B
Retailer 20
-
$1,087 USD
View
Most Expensive
B
Queensmith
LG821643185 · Oct 25
$1,791 USD
£1,410 GBP
View
20 more retailers have this diamond
Prices start from $167 USDSave up to $1,624 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
1.00ct Radiant
$167 USD