Radiant|Lab Grown|IGI

1.05ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG618421526

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

Certificate IGI LG618421526

Diamond specifications and retailer prices

From $266 USD
As of October 30, 2026
Save $1,138 USD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,404 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG618421526 or 618421526. Listed at 22 retailers as of October 30, 2026, with prices from $266 to $1,404, a $1,138 spread on the same certified stone. Reve Diamonds lists it at $1,404. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618421526
Dimensions7.30 × 5.05 × 3.40 mm
L/W Ratio1.45
Culet sizePointed
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
7.30 mm5.05 mm1.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618421526
Side View
Table 62.0%Crown 44.6°Girdle: MediumPavilion 35.2°Culet: NoneDepth 67.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $568 USD|Low: $255 USD|High: $1,337 USD|Avg: $585 USD|+2.6%
Retailer 1
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
November 2, 2026
Retailer 15$266 USD
Retailer 7$297 USD
Retailer 4$308 USD
Retailer 2$330 USD
Retailer 5$330 USD
Retailer 10$465 USD
Retailer 13$490 USD
Retailer 9$566 USD
Retailer 1$568 USD
Retailer 6$573 USD
Retailer 8$631 USD
Retailer 12$802 USD
Retailer 14$1,013 USD
Retailer 3$1,060 USD
Retailer 11$1,328 USD

43 data points across 15 retailers

22 retailers$266 USD to $1,404 USD

A
Cheapest Retailer
-
$266 USD
A
Retailer 2
-
$297 USD
View
Final sale: no returns
A
Retailer 3
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$308 USD
View
A
Retailer 4
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$330 USD
View
Retailer 5
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$330 USD
View
Price last confirmed 7 days ago
A
Retailer 6
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$371 USD
HK$2,900 HKD
View
A
Retailer 7
-
$465 USD
View
A
Retailer 8
-
$490 USD
View
A
Retailer 9
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$566 USD
€539 EUR
View
A
Retailer 10
-
$568 USD
ZAR 9,181 ZAR
View
A
Retailer 11
-
$573 USD
View
A
Retailer 12
-
$609 USD
View
B+
Retailer 13
-
$631 USD
£497 GBP
View
B+
Retailer 14
-
$802 USD
A$1,234 AUD
View
B+
Retailer 15
-
$887 USD
SGD 1,198 SGD
View
B+
Retailer 16
-
$1,013 USD
View
B
Retailer 17
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$1,060 USD
View
B
Retailer 18
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$1,111 USD
View
B
Retailer 19
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$1,280 USD
£1,008 GBP
View
B
Retailer 20
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$1,326 USD
£1,044 GBP
View
B
Retailer 21
-
$1,328 USD
£1,046 GBP
View
Most Expensive
B
Reve Diamonds
11A87E392 · Nov 1
$1,404 USD
View
21 more retailers have this diamond
Prices start from $266 USDSave up to $1,138 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
1.05ct Radiant
$266 USD