Round|Natural|GIA

0.71ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2556592508

Certificate GIA 2556592508

Diamond specifications and retailer prices

From £678 GBP
As of November 4, 2026
Save £805 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,140 GBP at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.71ct natural round diamond

This 0.71ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556592508. Listed at 19 retailers as of November 4, 2026, with a 119% 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

0.71
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556592508
Dimensions5.68 × 5.71 × 3.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.68 mm5.71 mm0.71 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556592508
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £942 GBP|Low: £491 GBP|High: £1,501 GBP|Avg: £845 GBP|+20.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 9£524 GBP
Retailer 7£563 GBP
Retailer 6£612 GBP
Retailer 8£640 GBP
Retailer 17£678 GBP
Retailer 5£713 GBP
Retailer 2£719 GBP
Retailer 15£734 GBP
Retailer 4£787 GBP
Retailer 3£807 GBP
Retailer 16£844 GBP
Retailer 1£942 GBP
Retailer 10£980 GBP
Retailer 11£1,010 GBP
Retailer 18£1,110 GBP
Retailer 12£1,127 GBP
Retailer 13£1,210 GBP
Retailer 14£1,483 GBP

27 data points across 18 retailers

19 retailers£678 GBP to £1,483 GBP

Retailer 1
-
£535 GBP
Price last confirmed 63 days ago
Retailer 2
-
£612 GBP
View
Price last confirmed 42 days ago
B+
Retailer 3
-
£678 GBP
View
Final sale: no returns
Retailer 4
-
£682 GBP
View
Price last confirmed 43 days ago
B+
Retailer 5
-
£719 GBP
View
Retailer 6
-
£734 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£734 GBP
View
Price last confirmed 15 days ago
B+
Retailer 8
-
£807 GBP
View
Retailer 9
-
£809 GBP
View
Price last confirmed 45 days ago
B+
Retailer 10
-
£844 GBP
View
Retailer 11
-
£847 GBP
View
Price last confirmed 16 days ago
B
Retailer 12
-
£942 GBP
View
B+
Retailer 13
-
£1,010 GBP
View
B
Retailer 14
-
£1,110 GBP
View
B
Retailer 15
-
£1,127 GBP
View
B
Retailer 16
-
£1,210 GBP
View
B
Retailer 17
-
£1,483 GBP
View
Retailer 18
-
£1,977 GBP
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
3f611720-642c-4e71-9392-eb5195e20377 · Sep 24
£2,140 GBP
$2,864 USD
View
Price last confirmed 43 days ago
18 more retailers have this diamond
Prices start from £678 GBPSave up to £805 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.

B+
0.71ct Round
£678 GBP