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Round|Natural|GIA

1.72ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 1505288826

Certificate GIA 1505288826

Diamond specifications and retailer prices

From £2,824 GBP
As of November 4, 2026
Save £3,315 GBP (54%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,139 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.72ct natural round diamond

This 1.72ct 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 1505288826. Listed at 12 retailers as of November 4, 2026, with prices from £2,824 to £6,139, a £3,315 spread on the same certified stone. NZ Jewellers lists it at £6,139. 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

1.72
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1505288826
Dimensions7.58 × 7.64 × 4.78 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Feather, Twinning Wisp, Crystal
Top View
7.58 mm7.64 mm1.72 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1505288826
Side View
Table 58.0%Crown 35.5°Girdle: Sli. ThickPavilion 41°Culet: NoneDepth 62.8%

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: £6,139 GBP|Low: £2,806 GBP|High: £6,139 GBP|Avg: £3,737 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 8£2,824 GBP
Retailer 5£3,034 GBP
Retailer 3£3,073 GBP
Retailer 6£3,447 GBP
Retailer 9£3,524 GBP
Retailer 10£3,524 GBP
Retailer 11£3,524 GBP
Retailer 4£3,604 GBP
Retailer 13£3,635 GBP
Retailer 7£3,975 GBP
Retailer 12£4,066 GBP
Retailer 2£4,419 GBP
NZ Jewellers£6,139 GBP

34 data points across 13 retailers

12 retailers£2,824 GBP to £6,139 GBP

B+
Cheapest Retailer
-
£2,824 GBP
B
Retailer 2
-
£3,073 GBP
View
B
Retailer 3
-
£3,447 GBP
View
Retailer 4
-
£3,524 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£3,524 GBP
View
B
Retailer 6
-
£3,524 GBP
View
B
Retailer 7
-
£3,604 GBP
View
B
Retailer 8
-
£3,635 GBP
View
B
Retailer 9
-
£3,975 GBP
View
B
Retailer 10
-
£4,066 GBP
View
B
Retailer 11
-
£4,419 GBP
View
Most Expensive
C
NZ Jewellers
a59db638-b66b-4c84-b937-8aff8bbc5415 · Nov 5
£6,139 GBP
$8,263 USD
View
11 more retailers have this diamond
Prices start from £2,824 GBPSave up to £3,315 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+
1.72ct Round
£2,824 GBP