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Radiant|Lab Grown|IGI

2.57ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG700540698

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

Certificate IGI LG700540698

Diamond specifications and retailer prices

From €789 EUR
$885 USD
As of November 2, 2026
Save €4,168 EUR (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,957 EUR at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG700540698 or 700540698. Listed at 12 retailers as of November 2, 2026, with prices from €789 to €4,957, a €4,168 spread on the same certified stone. Brilliant Earth lists it at €4,957. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.57
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700540698
Dimensions9.74 × 6.50 × 4.65 mm
L/W Ratio1.50
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
9.74 mm6.50 mm2.57 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700540698
Side View
Table 63.0%Crown 40.9°Girdle: MED-STKPavilion 36°Culet: NoneDepth 71.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €4,957 EUR|Low: €685 EUR|High: €5,225 EUR|Avg: €2,422 EUR|-3.0%
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
October 31, 2026
Retailer 4€685 EUR
Retailer 14€789 EUR
Retailer 3€824 EUR
Retailer 9€1,044 EUR
Retailer 2€1,138 EUR
Retailer 11€1,690 EUR
Retailer 5€1,832 EUR
Retailer 12€1,892 EUR
Retailer 8€2,977 EUR
Retailer 7€3,156 EUR
Retailer 13€3,722 EUR
Retailer 6€3,964 EUR
Retailer 10€4,877 EUR
Brilliant Earth€4,957 EUR

18 data points across 14 retailers

12 retailers€789 EUR to €4,957 EUR

A
Cheapest Retailer
-
€789 EUR
$885 USD
A
Retailer 2
-
€824 EUR
$924 USD
View
A
Retailer 3
-
€1,044 EUR
$1,171 USD
View
A
Retailer 4
-
€1,138 EUR
View
Retailer 5
-
€1,690 EUR
$1,895 USD
View
A
Retailer 6
-
€1,832 EUR
$2,055 USD
View
A
Retailer 7
-
€1,892 EUR
$2,122 USD
View
B+
Retailer 8
-
€2,977 EUR
£2,629 GBP
View
B+
Retailer 9
-
€3,156 EUR
A$5,445 AUD
View
B+
Retailer 10
-
€3,722 EUR
$4,175 USD
View
B
Retailer 11
-
€4,877 EUR
$5,470 USD
View
Most Expensive
B
Brilliant Earth
13959243Y · Nov 2
€4,957 EUR
$5,560 USD
View
11 more retailers have this diamond
Prices start from €789 EURSave up to €4,168 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
2.57ct Radiant
€789 EUR