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Round|Natural|GIA

1.71ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 1519402472

Certificate GIA 1519402472

Diamond specifications and retailer prices

From £2,897 GBP
As of November 5, 2026
Save £454 GBP (14%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,015 GBP at NZ Jewellers · As of September 28, 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1519402472. Listed at 7 retailers as of November 5, 2026, with a relatively tight 16% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1519402472
Dimensions7.60 × 7.64 × 4.77 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
7.60 mm7.64 mm1.71 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1519402472
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: £3,351 GBP|Low: £2,855 GBP|High: £3,602 GBP|Avg: £3,277 GBP|+12.1%
Retailer 1
Retailer 2
Retailer 3
November 5, 2026
Retailer 2£2,897 GBP
Retailer 1£3,351 GBP
Retailer 3£3,602 GBP

41 data points across 3 retailers

7 retailers£2,897 GBP to £3,351 GBP

Retailer 1
-
£2,878 GBP
Price last confirmed 29 days ago
Retailer 2
-
£2,878 GBP
View
Price last confirmed 29 days ago
B+
Retailer 3
-
£2,897 GBP
View
Retailer 4
-
£2,989 GBP
View
Price last confirmed 38 days ago
Retailer 5
-
£3,321 GBP
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£3,351 GBP
View
Most Expensive
NZ Jewellers
b9c7767b-597b-4b40-abfb-a5570dec1f21 · Sep 28
£5,015 GBP
$6,750 USD
View
Price last confirmed 39 days ago
6 more retailers have this diamond
Prices start from £2,897 GBPSave up to £454 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
£2,897 GBP