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Round|Lab Grown|IGI

2.59ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG574327605

Shape and cutting style on the report: Round brilliant

Certificate IGI LG574327605

Diamond specifications and retailer prices

From £259 GBP
As of November 5, 2026
Save £2,037 GBP (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,296 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 2.59ct lab-grown round diamond

This 2.59ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG574327605 or 574327605. Listed at 19 retailers as of November 4, 2026, with prices from £259 to £2,296, a £2,037 spread on the same certified stone. Do Amore Diamonds lists it at £2,296. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574327605
Dimensions8.79 × 8.75 × 5.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
8.79 mm8.75 mm2.59 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574327605
Side View
Table 55.5%Crown 34.9°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
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: Nov 5
Current: £2,296 GBP|Low: £231 GBP|High: £2,296 GBP|Avg: £808 GBP|+4.0%
Do Amore Diamonds
Retailer 2
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Retailer 18
November 6, 2026
Retailer 17£259 GBP
Retailer 5£289 GBP
Retailer 6£320 GBP
Retailer 7£320 GBP
Retailer 14£435 GBP
Retailer 2£467 GBP
Retailer 8£476 GBP
Retailer 18£503 GBP
Retailer 13£545 GBP
Retailer 15£939 GBP
Retailer 16£1,059 GBP
Retailer 11£1,087 GBP
Retailer 4£1,137 GBP
Retailer 9£1,232 GBP
Retailer 3£1,250 GBP
Retailer 10£1,251 GBP
Retailer 12£1,378 GBP
Do Amore Diamonds£2,296 GBP

38 data points across 18 retailers

19 retailers£259 GBP to £2,296 GBP

A
Cheapest Retailer
-
£259 GBP
A
Retailer 2
-
£289 GBP
View
Final sale: no returns
A
Retailer 3
-
£320 GBP
View
Retailer 4
-
£320 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£435 GBP
View
A
Retailer 6
-
£467 GBP
View
B+
Retailer 7
-
£476 GBP
View
A
Retailer 8
-
£503 GBP
View
A
Retailer 9
-
£545 GBP
View
B+
Retailer 10
-
£1,059 GBP
View
A
Retailer 11
-
£1,087 GBP
View
B+
Retailer 12
-
£1,137 GBP
View
A
Retailer 13
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£1,152 GBP
View
B+
Retailer 14
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£1,232 GBP
View
B+
Retailer 15
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£1,250 GBP
View
B+
Retailer 16
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£1,251 GBP
View
B+
Retailer 17
-
£1,251 GBP
View
B+
Retailer 18
-
£1,378 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-04DB907D5 · Nov 4
£2,296 GBP
$3,090 USD
View
18 more retailers have this diamond
Prices start from £259 GBPSave up to £2,037 GBP

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
£259 GBP