CaratHunter
Plans
Round|Natural|GIA

2.50ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 2556643677

Certificate GIA 2556643677

Diamond specifications and retailer prices

From £6,135 GBP
As of November 3, 2026
Save £3,880 GBP (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £12,322 GBP at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 2.5ct natural round diamond

This 2.5ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 2556643677. Listed at 9 retailers as of November 2, 2026, with a 63% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.50
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle35°
Pavilion angle42.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556643677
Dimensions8.36 × 8.51 × 5.44 mm
L/W Ratio1.02
Girdle conditionThick
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
8.36 mm8.51 mm2.50 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 2556643677
Side View
Table 62.0%Crown 35°GirdlePavilion 42.2°CuletDepth 64.5%

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: Nov 3
Current: £6,135 GBP|Low: £6,084 GBP|High: £10,391 GBP|Avg: £8,160 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 3, 2026
Retailer 1£6,135 GBP
Retailer 5£6,449 GBP
Retailer 4£8,174 GBP
Retailer 2£8,583 GBP
Retailer 3£10,015 GBP

43 data points across 5 retailers

9 retailers£6,135 GBP to £10,015 GBP

A
Cheapest Retailer
-
£6,135 GBP
B+
Retailer 2
-
£6,449 GBP
View
Retailer 3
-
£7,367 GBP
View
Price last confirmed 30 days ago
Retailer 4
-
£7,367 GBP
View
Price last confirmed 45 days ago
Retailer 5
-
£7,481 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£8,174 GBP
View
B+
Retailer 7
-
£8,583 GBP
View
B+
Retailer 8
-
£10,015 GBP
View
Most Expensive
NZ Jewellers
5308f7df-6cb8-4d54-a16b-cca2f83b5607 · Sep 20
£12,322 GBP
$16,585 USD
View
Price last confirmed 46 days ago
8 more retailers have this diamond
Prices start from £6,135 GBPSave up to £3,880 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
£6,135 GBP