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Radiant|Lab Grown|IGI

1.28ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG732507011

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

Certificate IGI LG732507011

Diamond specifications and retailer prices

From €258 EUR
$289 USD
As of November 2, 2026
Save €1,561 EUR (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €1,819 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG732507011 or 732507011. Listed at 25 retailers as of November 2, 2026, with prices from €258 to €1,819, a €1,561 spread on the same certified stone. Brilliant Earth lists it at €1,819. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732507011
Dimensions7.79 × 5.28 × 3.59 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.28 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732507011
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 68.0%

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: Nov 2
Current: €1,819 EUR|Low: €247 EUR|High: €1,819 EUR|Avg: €730 EUR
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 4€258 EUR
Retailer 7€288 EUR
Retailer 5€319 EUR
Retailer 3€430 EUR
Retailer 13€459 EUR
Retailer 10€541 EUR
Retailer 6€543 EUR
Retailer 8€551 EUR
Retailer 2€565 EUR
Retailer 12€779 EUR
Retailer 15€981 EUR
Retailer 11€1,007 EUR
Retailer 9€1,280 EUR
Retailer 14€1,333 EUR
Brilliant Earth€1,819 EUR

43 data points across 15 retailers

25 retailers€258 EUR to €1,819 EUR

A
Cheapest Retailer
-
€258 EUR
$289 USD
A
Retailer 2
-
€288 EUR
$323 USD
View
Final sale: no returns
A
Retailer 3
-
€299 EUR
$335 USD
View
Retailer 4
-
€319 EUR
$358 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€319 EUR
$358 USD
View
A
Retailer 6
-
€430 EUR
$482 USD
View
A
Retailer 7
-
€459 EUR
$515 USD
View
A
Retailer 8
-
€541 EUR
View
A
Retailer 9
-
€543 EUR
$609 USD
View
A
Retailer 10
-
€551 EUR
ZAR 9,978 ZAR
View
A
Retailer 11
-
€565 EUR
£499 GBP
View
B+
Retailer 12
-
€779 EUR
A$1,344 AUD
View
B+
Retailer 13
-
€785 EUR
$881 USD
View
B+
Retailer 14
-
€981 EUR
$1,100 USD
View
B+
Retailer 15
-
€1,007 EUR
A$1,738 AUD
View
B+
Retailer 16
-
€1,026 EUR
$1,151 USD
View
B+
Retailer 17
-
€1,070 EUR
$1,200 USD
View
B+
Retailer 18
-
€1,137 EUR
$1,275 USD
View
B
Retailer 19
-
€1,250 EUR
£1,104 GBP
View
B+
Retailer 20
-
€1,280 EUR
£1,130 GBP
View
B
Retailer 21
-
€1,317 EUR
$1,477 USD
View
Retailer 22
-
€1,333 EUR
$1,495 USD
View
Price last confirmed 12 days ago
B
Retailer 23
-
€1,641 EUR
$1,840 USD
View
Retailer 24
-
€1,645 EUR
$1,845 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
15733199A · Nov 2
€1,819 EUR
$2,040 USD
View
24 more retailers have this diamond
Prices start from €258 EURSave up to €1,561 EUR

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
1.28ct Radiant
€258 EUR