Radiant|Lab Grown|IGI

2.57ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818653763

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

Certificate IGI LG818653763

Diamond specifications and retailer prices

From $1,744 USD
As of October 28, 2026
Save $6,596 USD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $8,340 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG818653763 or 818653763. Listed at 8 retailers as of October 28, 2026, with prices from $1,744 to $8,340, a $6,596 spread on the same certified stone. Do Amore Diamonds lists it at $8,340. 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 angle43.2°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818653763
Dimensions9.37 × 6.81 × 4.71 mm
L/W Ratio1.38
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
9.37 mm6.81 mm2.57 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818653763
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 37.4°Culet: NoneDepth 69.2%

Caratlytics Score

How it works →
A+
Exceptional
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 28
Current: $8,340 USD|Low: $1,400 USD|High: $9,400 USD|Avg: $4,350 USD|-11.3%
Do Amore Diamonds
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 3$1,583 USD
Retailer 8$1,744 USD
Retailer 7$1,820 USD
Retailer 9$2,453 USD
Retailer 13$2,962 USD
Retailer 12$3,151 USD
Retailer 11$3,769 USD
Retailer 4$4,054 USD
Retailer 6$4,100 USD
Retailer 10$5,735 USD
Retailer 2$6,250 USD
Retailer 5$8,037 USD
Do Amore Diamonds$8,340 USD

20 data points across 13 retailers

8 retailers$1,744 USD to $8,340 USD

A+
Cheapest Retailer
-
$1,744 USD
A
Retailer 2
-
$1,820 USD
View
A
Retailer 3
-
$2,453 USD
View
B+
Retailer 4
-
$3,769 USD
View
B+
Retailer 5
-
$4,100 USD
£3,228 GBP
View
Retailer 6
-
$5,735 USD
View
Price last confirmed 9 days ago
B
Retailer 7
-
$6,250 USD
View
Most Expensive
B
Do Amore Diamonds
27-C88DEB7D2 · Oct 29
$8,340 USD
View
7 more retailers have this diamond
Prices start from $1,744 USDSave up to $6,596 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+
2.57ct Radiant
$1,744 USD