Radiant|Lab Grown|IGI

1.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG640446935

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

Certificate IGI LG640446935

Diamond specifications and retailer prices

From $245 USD
As of October 30, 2026
Save $1,665 USD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,910 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.15ct lab-grown radiant diamond

This 1.15ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640446935 or 640446935. Listed at 21 retailers as of October 30, 2026, with prices from $245 to $1,910, a $1,665 spread on the same certified stone. Brilliant Earth lists it at $1,910. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640446935
Dimensions7.88 × 4.96 × 3.29 mm
L/W Ratio1.59
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.88 mm4.96 mm1.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640446935
Side View
Table 63.0%Crown 40.3°Girdle: MediumPavilion 32.6°Culet: NoneDepth 66.3%

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: $1,910 USD|Low: $274 USD|High: $2,210 USD|Avg: $790 USD|-13.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 5$274 USD
Retailer 3$304 USD
Retailer 13$425 USD
Retailer 10$500 USD
Retailer 8$522 USD
Retailer 2$577 USD
Retailer 9$741 USD
Retailer 11$794 USD
Retailer 4$977 USD
Retailer 6$1,008 USD
Retailer 7$1,224 USD
Retailer 12$1,335 USD
Brilliant Earth$1,910 USD

43 data points across 13 retailers

21 retailers$245 USD to $1,910 USD

A
Cheapest Retailer
-
$245 USD
A
Retailer 2
-
$274 USD
View
Final sale: no returns
A
Retailer 3
-
$284 USD
View
A
Retailer 4
-
$304 USD
View
A
Retailer 5
-
$304 USD
View
A
Retailer 6
-
$425 USD
View
Retailer 7
-
$500 USD
€476 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$522 USD
ZAR 8,433 ZAR
View
A
Retailer 9
-
$573 USD
View
A
Retailer 10
-
$577 USD
£454 GBP
View
B+
Retailer 11
-
$741 USD
A$1,140 AUD
View
B+
Retailer 12
-
$794 USD
View
B+
Retailer 13
-
$977 USD
View
Retailer 14
-
$980 USD
View
Price last confirmed 14 days ago
B+
Retailer 15
-
$1,008 USD
A$1,551 AUD
View
B+
Retailer 16
-
$1,029 USD
View
B+
Retailer 17
-
$1,103 USD
View
B+
Retailer 18
-
$1,224 USD
£964 GBP
View
Retailer 19
-
$1,335 USD
View
Price last confirmed 11 days ago
B
Retailer 20
-
$1,337 USD
View
Most Expensive
B
Brilliant Earth
14080924A · Oct 30
$1,910 USD
View
20 more retailers have this diamond
Prices start from $245 USDSave up to $1,665 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
1.15ct Radiant
$245 USD