Round|Natural|GIA

1.71ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2547160829

Certificate GIA 2547160829

Diamond specifications and retailer prices

From £5,377 GBP
$7,205 USD
As of October 31, 2026
Save £3,812 GBP (41%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £10,970 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.71ct natural round diamond

This 1.71ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2547160829. Listed at 13 retailers as of October 29, 2026, with a 71% 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

1.71
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2547160829
Dimensions7.55 × 7.60 × 4.74 mm
L/W Ratio1.01
Top View
7.55 mm7.60 mm1.71 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547160829
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°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: Oct 31
Current: £10,970 GBP|Low: £5,377 GBP|High: £10,970 GBP|Avg: £7,439 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10£5,377 GBP
Retailer 9£5,474 GBP
Retailer 6£5,913 GBP
Retailer 3£6,131 GBP
Retailer 4£6,132 GBP
Retailer 7£6,351 GBP
Retailer 8£6,697 GBP
Retailer 2£6,886 GBP
Retailer 5£9,189 GBP
NZ Jewellers£10,970 GBP

41 data points across 10 retailers

13 retailers£5,377 GBP to £9,189 GBP

B+
Cheapest Retailer
-
£5,377 GBP
$7,205 USD
B+
Retailer 2
-
£5,474 GBP
CA$10,188 CAD
View
B+
Retailer 3
-
£5,913 GBP
$7,923 USD
View
B+
Retailer 4
-
£6,131 GBP
View
B+
Retailer 5
-
£6,132 GBP
$8,216 USD
View
B
Retailer 6
-
£6,351 GBP
$8,510 USD
View
B+
Retailer 7
-
£6,598 GBP
$8,840 USD
View
B+
Retailer 8
-
£6,598 GBP
$8,840 USD
View
B+
Retailer 9
-
£6,697 GBP
$8,973 USD
View
B+
Retailer 10
-
£6,814 GBP
$9,130 USD
View
B+
Retailer 11
-
£6,886 GBP
€8,787 EUR
View
B
Retailer 12
-
£9,189 GBP
View
Most Expensive
NZ Jewellers
0f519b96-d490-452f-a6c4-d2503bd27ab6 · Oct 20
£10,970 GBP
$14,698 USD
View
Price last confirmed 10 days ago
12 more retailers have this diamond
Prices start from £5,377 GBPSave up to £3,812 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+
1.71ct Round
£5,377 GBP