Round|Natural|GIA

2.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2556687185

Certificate GIA 2556687185

Diamond specifications and retailer prices

From £8,189 GBP
$10,973 USD
As of October 29, 2026
Save £4,156 GBP (34%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £15,207 GBP at NZ Jewellers · As of October 9, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556687185. Listed at 28 retailers as of October 29, 2026, with a 51% 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

2.50
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2556687185
Dimensions8.63 × 8.68 × 5.40 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.63 mm8.68 mm2.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556687185
Side View
Table 57.0%Crown 34.5°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.4%

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: Oct 29
Current: £15,207 GBP|Low: £7,288 GBP|High: £15,207 GBP|Avg: £9,792 GBP
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
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Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
Retailer 27
Retailer 28
Retailer 29
October 30, 2026
Retailer 22£7,925 GBP
Retailer 16£8,019 GBP
Retailer 11£8,189 GBP
Retailer 5£8,327 GBP
Retailer 29£8,466 GBP
Retailer 21£8,526 GBP
Retailer 14£8,724 GBP
Retailer 2£8,731 GBP
Retailer 26£8,743 GBP
Retailer 23£8,745 GBP
Retailer 4£8,794 GBP
Retailer 9£9,124 GBP
Retailer 25£9,663 GBP
Retailer 17£9,738 GBP
Retailer 28£9,839 GBP
Retailer 19£9,884 GBP
Retailer 7£10,050 GBP
Retailer 15£10,109 GBP
Retailer 12£10,154 GBP
Retailer 18£10,229 GBP
Retailer 20£10,265 GBP
Retailer 6£10,523 GBP
Retailer 13£10,523 GBP
Retailer 3£10,874 GBP
Retailer 10£11,143 GBP
Retailer 27£11,402 GBP
Retailer 24£12,345 GBP
Retailer 8£14,383 GBP
NZ Jewellers£15,207 GBP

34 data points across 29 retailers

28 retailers£8,189 GBP to £12,345 GBP

Retailer 1
-
£8,019 GBP
$10,745 USD
Price last confirmed 23 days ago
A
Retailer 2
-
£8,189 GBP
$10,973 USD
View
A
Retailer 3
-
£8,327 GBP
$11,157 USD
View
A
Retailer 4
-
£8,466 GBP
$11,343 USD
View
Retailer 5
-
£8,724 GBP
$11,689 USD
View
Price last confirmed 23 days ago
A
Retailer 6
-
£8,731 GBP
₹1,114,204 INR
View
A
Retailer 7
-
£8,743 GBP
$11,715 USD
View
Final sale: no returns
A
Retailer 8
-
£8,745 GBP
$11,718 USD
View
A
Retailer 9
-
£8,794 GBP
CA$16,366 CAD
View
Retailer 10
-
£9,124 GBP
$12,225 USD
View
Price last confirmed 22 days ago
A
Retailer 11
-
£9,663 GBP
View
B+
Retailer 12
-
£9,738 GBP
$13,048 USD
View
B+
Retailer 13
-
£9,839 GBP
$13,183 USD
View
Retailer 14
-
£9,884 GBP
$13,244 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£10,050 GBP
$13,466 USD
View
B+
Retailer 16
-
£10,109 GBP
$13,545 USD
View
B+
Retailer 17
-
£10,154 GBP
$13,605 USD
View
Retailer 18
-
£10,229 GBP
$13,706 USD
View
Price last confirmed 22 days ago
Retailer 19
-
£10,265 GBP
$13,754 USD
View
Price last confirmed 21 days ago
B+
Retailer 20
-
£10,319 GBP
$13,826 USD
View
B+
Retailer 21
-
£10,523 GBP
$14,100 USD
View
B+
Retailer 22
-
£10,523 GBP
$14,100 USD
View
B+
Retailer 23
-
£10,874 GBP
$14,570 USD
View
B+
Retailer 24
-
£11,143 GBP
$14,931 USD
View
B+
Retailer 25
-
£11,402 GBP
€14,550 EUR
View
B+
Retailer 26
-
£12,345 GBP
View
Retailer 27
-
£14,383 GBP
View
Price last confirmed 22 days ago
Most Expensive
NZ Jewellers
2cc54c46-9023-42d3-9e70-8a74e9fb4ff3 · Oct 9
£15,207 GBP
$20,376 USD
View
Price last confirmed 21 days ago
27 more retailers have this diamond
Prices start from £8,189 GBPSave up to £4,156 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
£8,189 GBP