Round|Natural|GIA

1.13ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2564403311

Certificate GIA 2564403311

Diamond specifications and retailer prices

From £2,321 GBP
HK$24,300 HKD
As of October 28, 2026
Save £3,019 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,556 GBP at NZ Jewellers · As of October 23, 2026
View at NZ Jewellers

About this 1.13ct natural round diamond

This 1.13ct 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 2564403311. Listed at 17 retailers as of October 26, 2026, with a 130% 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

1.13
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2564403311
Dimensions6.66 × 6.62 × 4.11 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.66 mm6.62 mm1.13 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564403311
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: £5,556 GBP|Low: £2,321 GBP|High: £5,824 GBP|Avg: £3,446 GBP|-4.6%
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
Retailer 14
Retailer 15
Retailer 16
October 27, 2026
Retailer 7£2,321 GBP
Retailer 14£2,538 GBP
Retailer 2£2,677 GBP
Retailer 5£2,805 GBP
Retailer 15£2,943 GBP
Retailer 6£2,952 GBP
Retailer 11£2,976 GBP
Retailer 4£3,000 GBP
Retailer 12£3,026 GBP
Retailer 9£3,078 GBP
Retailer 8£3,105 GBP
Retailer 16£3,276 GBP
Retailer 10£3,883 GBP
Retailer 3£4,787 GBP
Retailer 13£5,340 GBP
NZ Jewellers£5,556 GBP

12 data points across 16 retailers

17 retailers£2,321 GBP to £5,340 GBP

A
Cheapest Retailer
-
£2,321 GBP
HK$24,300 HKD
A
Retailer 2
-
£2,538 GBP
$3,400 USD
View
Retailer 3
-
£2,677 GBP
€3,416 EUR
View
Price last confirmed 4 days ago
B+
Retailer 4
-
£2,744 GBP
A$5,657 AUD
View
B+
Retailer 5
-
£2,805 GBP
$3,759 USD
View
Retailer 6
-
£2,829 GBP
$3,791 USD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£2,952 GBP
SGD 5,345 SGD
View
B+
Retailer 8
-
£2,976 GBP
View
Retailer 9
-
£3,000 GBP
$4,019 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£3,026 GBP
$4,055 USD
View
B+
Retailer 11
-
£3,078 GBP
View
B+
Retailer 12
-
£3,105 GBP
$4,161 USD
View
B+
Retailer 13
-
£3,276 GBP
$4,390 USD
View
B+
Retailer 14
-
£3,883 GBP
ZAR 84,051 ZAR
View
B
Retailer 15
-
£4,787 GBP
$6,414 USD
View
B
Retailer 16
-
£5,340 GBP
View
Most Expensive
NZ Jewellers
a990424f-92d5-4566-aed8-a84b52e7f012 · Oct 23
£5,556 GBP
$7,444 USD
View
Price last confirmed 8 days ago
16 more retailers have this diamond
Prices start from £2,321 GBPSave up to £3,019 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.

A
1.13ct Round
£2,321 GBP