Round|Natural|GIA

2.51ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 5546795916

Certificate GIA 5546795916

Diamond specifications and retailer prices

From £5,668 GBP
As of November 4, 2026
Save £2,369 GBP (29%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £11,166 GBP at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5546795916. Listed at 15 retailers as of November 4, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.51
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 5546795916
Dimensions8.64 × 8.70 × 5.41 mm
L/W Ratio1.01
Top View
8.64 mm8.70 mm2.51 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5546795916
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 62.3%

Caratlytics Score

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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 4
Current: £10,973 GBP|Low: £5,516 GBP|High: £11,264 GBP|Avg: £7,952 GBP|+3.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 4£5,668 GBP
Retailer 8£7,204 GBP
Retailer 2£7,401 GBP
Retailer 7£7,804 GBP
Retailer 6£7,923 GBP
Retailer 3£8,003 GBP
Retailer 5£8,037 GBP
NZ Jewellers£10,973 GBP

39 data points across 8 retailers

15 retailers£5,668 GBP to £8,037 GBP

A
Cheapest Retailer
-
£5,668 GBP
B+
Retailer 2
-
£7,204 GBP
View
B+
Retailer 3
-
£7,401 GBP
View
Retailer 4
-
£7,804 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
£7,923 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£7,943 GBP
View
Price last confirmed 23 days ago
B+
Retailer 7
-
£8,003 GBP
View
Retailer 8
-
£8,012 GBP
View
Price last confirmed 30 days ago
B+
Retailer 9
-
£8,037 GBP
View
Retailer 10
-
£8,082 GBP
View
Price last confirmed 36 days ago
Retailer 11
-
£8,206 GBP
View
Price last confirmed 38 days ago
Retailer 12
-
£10,586 GBP
View
Price last confirmed 41 days ago
Retailer 13
-
£10,973 GBP
View
Price last confirmed 10 days ago
Retailer 14
-
£11,070 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
2b01710c-fbc5-454e-a6c3-40e4eb4bbdcf · Oct 9
£11,166 GBP
$15,029 USD
View
Price last confirmed 28 days ago
14 more retailers have this diamond
Prices start from £5,668 GBPSave up to £2,369 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
2.51ct Round
£5,668 GBP