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Round|Lab Grown|IGI

2.56ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG840643115

Shape and cutting style on the report: Round brilliant

Certificate IGI LG840643115

Diamond specifications and retailer prices

From $353 USD
As of October 30, 2026
Save $2,007 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,360 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 2.56ct lab-grown round diamond

This 2.56ct 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 LG840643115 or 840643115. Listed at 16 retailers as of October 29, 2026, with prices from $353 to $2,360, a $2,007 spread on the same certified stone. Do Amore Diamonds lists it at $2,360. 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

2.56
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840643115
Dimensions8.70 × 8.68 × 5.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.70 mm8.68 mm2.56 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840643115
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.5%

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: Oct 30
Current: $2,360 USD|Low: $353 USD|High: $2,690 USD|Avg: $1,279 USD|-12.3%
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
Retailer 14
Retailer 15
October 30, 2026
Retailer 6$353 USD
Retailer 14$521 USD
Retailer 11$545 USD
Retailer 3$603 USD
Retailer 10$646 USD
Retailer 8$651 USD
Retailer 9$775 USD
Retailer 4$934 USD
Retailer 13$1,284 USD
Retailer 5$1,548 USD
Retailer 15$1,558 USD
Retailer 12$1,699 USD
Retailer 7$1,922 USD
Retailer 2$2,070 USD
Do Amore Diamonds$2,360 USD

14 data points across 15 retailers

16 retailers$353 USD to $2,360 USD

A
Cheapest Retailer
-
$353 USD
Final sale: no returns
B+
Retailer 2
-
$521 USD
View
A
Retailer 3
-
$545 USD
View
A
Retailer 4
-
$581 USD
View
A
Retailer 5
-
$603 USD
View
A
Retailer 6
-
$651 USD
£513 GBP
View
A
Retailer 7
-
$775 USD
£610 GBP
View
A
Retailer 8
-
$934 USD
View
B+
Retailer 9
-
$1,284 USD
CA$1,784 CAD
View
Retailer 10
-
$1,535 USD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$1,548 USD
View
B
Retailer 12
-
$1,558 USD
View
B
Retailer 13
-
$1,699 USD
View
Retailer 14
-
$1,922 USD
£1,513 GBP
View
Price last confirmed 9 days ago
B
Retailer 15
-
$2,070 USD
View
Most Expensive
B
Do Amore Diamonds
25-243191-019 · Oct 29
$2,360 USD
View
15 more retailers have this diamond
Prices start from $353 USDSave up to $2,007 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
2.56ct Round
$353 USD