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Round|Natural|GIA

2.50ct E I1 Round Natural Diamond

EX • E/I1 • GIA 1555040509

Certificate GIA 1555040509

Diamond specifications and retailer prices

From £7,662 GBP
$10,204 USD
As of October 29, 2026
Save £1,822 GBP (19%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £10,402 GBP at DreamStone · As of October 21, 2026
View at DreamStone

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded E colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1555040509. Listed at 3 retailers as of October 29, 2026, with a relatively tight 24% spread, which is unusual at this carat range and suggests competitive pricing across the listings. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.50
Carat
E
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555040509
Dimensions8.71 × 8.78 × 5.36 mm
L/W Ratio1.01
Star length45%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cavity, Indented Natural, Needle, Natural
Top View
8.71 mm8.78 mm2.50 ctE / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555040509
Side View
Table 56.0%Crown 33.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.2%

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 29
Current: £10,402 GBP|Low: £7,662 GBP|High: £11,201 GBP|Avg: £10,248 GBP
DreamStone
Retailer 2
Retailer 3
Retailer 4
October 29, 2026
Retailer 3£7,662 GBP
Retailer 2£9,485 GBP
DreamStone£10,402 GBP
Retailer 4£10,525 GBP

23 data points across 4 retailers

3 retailers£7,662 GBP to £9,485 GBP

A
Cheapest Retailer
-
£7,662 GBP
$10,204 USD
A
Retailer 2
-
£9,485 GBP
€12,029 EUR
View
Most Expensive
DreamStone
6a49674c580d63ebdb1b6cc4 · Oct 21
£10,402 GBP
$13,853 USD
View
Price last confirmed 8 days ago
2 more retailers have this diamond
Prices start from £7,662 GBPSave up to £1,822 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
2.50ct Round
£7,662 GBP