CaratHunter
Plans
Round|Lab Grown|IGI

2.59ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG782619510

Shape and cutting style on the report: Round brilliant

Certificate IGI LG782619510

Diamond specifications and retailer prices

From $512 USD
As of October 28, 2026
Save $2,818 USD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,330 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 2.59ct lab-grown round diamond

This 2.59ct lab-grown round sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG782619510 or 782619510. Listed at 8 retailers as of October 28, 2026, with prices from $512 to $3,330, a $2,818 spread on the same certified stone. Brilliant Earth lists it at $3,330. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.59
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782619510
Dimensions8.81 × 8.76 × 5.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.81 mm8.76 mm2.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782619510
Side View
Table 58.0%Crown 35.3°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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: Oct 28
Current: $3,330 USD|Low: $512 USD|High: $3,430 USD|Avg: $1,170 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 5$512 USD
Retailer 2$677 USD
Retailer 3$677 USD
Retailer 6$758 USD
Retailer 7$790 USD
Retailer 4$1,532 USD
Brilliant Earth$3,330 USD

40 data points across 7 retailers

8 retailers$512 USD to $3,330 USD

B+
Cheapest Retailer
-
$512 USD
A
Retailer 2
-
$677 USD
£533 GBP
View
A
Retailer 3
-
$677 USD
€645 EUR
View
A
Retailer 4
-
$758 USD
View
A
Retailer 5
-
$790 USD
View
B+
Retailer 6
-
$1,273 USD
View
B+
Retailer 7
-
$1,532 USD
£1,206 GBP
View
Most Expensive
B
Brilliant Earth
18382616A · Oct 29
$3,330 USD
View
7 more retailers have this diamond
Prices start from $512 USDSave up to $2,818 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
2.59ct Round
$512 USD