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Radiant|Lab Grown|IGI

2.57ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799643658

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

Certificate IGI LG799643658

Diamond specifications and retailer prices

From €1,249 EUR
$1,395 USD
As of October 31, 2026
Save €4,498 EUR (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,746 EUR at Brilliant Earth · As of October 31, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799643658 or 799643658. Listed at 24 retailers as of October 31, 2026, with prices from €1,249 to €5,746, a €4,498 spread on the same certified stone. Brilliant Earth lists it at €5,746. 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
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.3°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799643658
Dimensions9.13 × 6.75 × 4.81 mm
L/W Ratio1.35
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
9.13 mm6.75 mm2.57 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799643658
Side View
Table 62.0%Crown 45.3°Girdle: MediumPavilion 36.7°Culet: NoneDepth 71.3%

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 31
Current: €5,746 EUR|Low: €1,081 EUR|High: €8,682 EUR|Avg: €3,104 EUR|-33.8%
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
Retailer 16
Retailer 17
Retailer 18
October 31, 2026
Retailer 6€1,120 EUR
Retailer 3€1,249 EUR
Retailer 16€1,251 EUR
Retailer 8€1,335 EUR
Retailer 11€1,609 EUR
Retailer 5€1,784 EUR
Retailer 2€2,101 EUR
Retailer 4€2,272 EUR
Retailer 7€2,385 EUR
Retailer 12€2,890 EUR
Retailer 9€3,097 EUR
Retailer 13€3,644 EUR
Retailer 14€3,804 EUR
Retailer 10€3,914 EUR
Retailer 17€4,409 EUR
Retailer 15€4,783 EUR
Retailer 18€5,174 EUR
Brilliant Earth€5,746 EUR

32 data points across 18 retailers

24 retailers€1,249 EUR to €5,746 EUR

Retailer 1
-
€1,120 EUR
$1,251 USD
Price last confirmed 15 days ago
A
Retailer 2
-
€1,249 EUR
$1,395 USD
View
A
Retailer 3
-
€1,251 EUR
$1,398 USD
View
Final sale: no returns
A
Retailer 4
-
€1,335 EUR
$1,491 USD
View
A
Retailer 5
-
€1,609 EUR
£1,416 GBP
View
Retailer 6
-
€1,610 EUR
$1,799 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
€1,784 EUR
$1,993 USD
View
Retailer 8
-
€1,825 EUR
$2,039 USD
View
Price last confirmed 34 days ago
Retailer 9
-
€1,946 EUR
$2,174 USD
View
Price last confirmed 29 days ago
A
Retailer 10
-
€2,101 EUR
View
A
Retailer 11
-
€2,272 EUR
$2,538 USD
View
B+
Retailer 12
-
€2,385 EUR
$2,664 USD
View
B+
Retailer 13
-
€2,890 EUR
ZAR 52,159 ZAR
View
B+
Retailer 14
-
€3,097 EUR
£2,724 GBP
View
B+
Retailer 15
-
€3,426 EUR
$3,828 USD
View
B+
Retailer 16
-
€3,644 EUR
$4,071 USD
View
Retailer 17
-
€3,647 EUR
$4,075 USD
View
Price last confirmed 31 days ago
B+
Retailer 18
-
€3,804 EUR
£3,346 GBP
View
B+
Retailer 19
-
€3,914 EUR
$4,372 USD
View
B+
Retailer 20
-
€4,409 EUR
SGD 6,657 SGD
View
B
Retailer 21
-
€4,783 EUR
$5,344 USD
View
Retailer 22
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€5,174 EUR
$5,780 USD
View
Price last confirmed 11 days ago
Retailer 23
-
€5,335 EUR
$5,960 USD
View
Price last confirmed 62 days ago
Most Expensive
B
Brilliant Earth
21420878A · Oct 31
€5,746 EUR
$6,420 USD
View
23 more retailers have this diamond
Prices start from €1,249 EURSave up to €4,498 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
€1,249 EUR