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1.15ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 01-15882976

Certificate GIA 01-15882976

Diamond specifications and retailer prices

From £2,821 GBP
$3,780 USD
As of October 31, 2026
Save £2,094 GBP (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £4,915 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.15ct natural round diamond

This 1.15ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 01-15882976. Listed at 5 retailers as of October 30, 2026, with prices from £2,821 to £4,915, a £2,094 spread on the same certified stone. NZ Jewellers lists it at £4,915. 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

1.15
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 01-15882976
Dimensions6.61 × 6.66 × 4.16 mm
L/W Ratio1.01
Top View
6.61 mm6.66 mm1.15 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 01-15882976
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

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: £4,915 GBP|Low: £2,821 GBP|High: £4,971 GBP|Avg: £3,543 GBP|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5£2,821 GBP
Retailer 4£2,930 GBP
Retailer 3£3,029 GBP
Retailer 2£3,528 GBP
NZ Jewellers£4,915 GBP

10 data points across 5 retailers

5 retailers£2,821 GBP to £4,915 GBP

B+
Cheapest Retailer
-
£2,821 GBP
$3,780 USD
B+
Retailer 2
-
£2,930 GBP
$3,926 USD
View
B+
Retailer 3
-
£3,029 GBP
$4,059 USD
View
B+
Retailer 4
-
£3,528 GBP
$4,727 USD
View
Most Expensive
B
NZ Jewellers
96c53c97-8e5a-4b97-8959-aea0b31ca36b · Oct 30
£4,915 GBP
$6,586 USD
View
4 more retailers have this diamond
Prices start from £2,821 GBPSave up to £2,094 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+
1.15ct Round
£2,821 GBP