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Round|Natural|GIA

1.13ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1488458889

Certificate GIA 1488458889

Diamond specifications and retailer prices

From £3,110 GBP
$4,167 USD
As of October 30, 2026
Save £3,475 GBP (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £6,585 GBP at NZ Jewellers · As of October 30, 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 1488458889. Listed at 21 retailers as of October 30, 2026, with prices from £3,110 to £6,585, a £3,475 spread on the same certified stone. NZ Jewellers lists it at £6,585. 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 angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1488458889
Dimensions6.74 × 6.73 × 4.07 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
Pinpoints are not shown.
Top View
6.74 mm6.73 mm1.13 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1488458889
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.4%

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 30
Current: £6,585 GBP|Low: £3,110 GBP|High: £6,874 GBP|Avg: £4,403 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 4£3,110 GBP
Retailer 6£3,111 GBP
Retailer 5£3,136 GBP
Retailer 18£3,191 GBP
Retailer 17£3,362 GBP
Retailer 3£3,567 GBP
Retailer 8£3,567 GBP
Retailer 16£3,567 GBP
Retailer 14£3,628 GBP
Retailer 11£3,905 GBP
Retailer 9£4,115 GBP
Retailer 13£4,207 GBP
Retailer 15£4,345 GBP
Retailer 10£4,581 GBP
Retailer 12£4,839 GBP
Retailer 7£5,700 GBP
Retailer 2£6,271 GBP
NZ Jewellers£6,585 GBP

43 data points across 18 retailers

21 retailers£3,110 GBP to £6,585 GBP

B+
Cheapest Retailer
-
£3,110 GBP
$4,167 USD
B+
Retailer 2
-
£3,111 GBP
$4,168 USD
View
B+
Retailer 3
-
£3,136 GBP
$4,202 USD
View
Final sale: no returns
Retailer 4
-
£3,191 GBP
$4,275 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
£3,362 GBP
$4,505 USD
View
B+
Retailer 6
-
£3,567 GBP
$4,779 USD
View
B+
Retailer 7
-
£3,567 GBP
$4,779 USD
View
B+
Retailer 8
-
£3,567 GBP
$4,779 USD
View
B+
Retailer 9
-
£3,628 GBP
$4,861 USD
View
Retailer 10
-
£3,628 GBP
$4,861 USD
View
Price last confirmed 11 days ago
B+
Retailer 11
-
£3,905 GBP
View
B
Retailer 12
-
£4,115 GBP
$5,514 USD
View
B+
Retailer 13
-
£4,207 GBP
€5,368 EUR
View
Retailer 14
-
£4,250 GBP
$5,695 USD
View
Price last confirmed 23 days ago
Retailer 15
-
£4,250 GBP
$5,695 USD
View
Price last confirmed 32 days ago
Retailer 16
-
£4,345 GBP
$5,822 USD
View
Price last confirmed 9 days ago
Retailer 17
-
£4,581 GBP
A$9,443 AUD
View
Price last confirmed 28 days ago
B
Retailer 18
-
£4,839 GBP
ZAR 104,751 ZAR
View
B
Retailer 19
-
£5,700 GBP
$7,637 USD
View
B
Retailer 20
-
£6,271 GBP
View
Most Expensive
B
NZ Jewellers
a4fcb53f-22fa-41f2-8026-026a9e029870 · Oct 30
£6,585 GBP
$8,823 USD
View
20 more retailers have this diamond
Prices start from £3,110 GBPSave up to £3,475 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+
1.13ct Round
£3,110 GBP