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Round|Natural|GIA

1.13ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1538747711

Certificate GIA 1538747711

Diamond specifications and retailer prices

From £1,851 GBP
$2,480 USD
As of October 31, 2026
Save £2,694 GBP (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,544 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538747711. Listed at 15 retailers as of October 30, 2026, with prices from £1,851 to £4,544, a £2,694 spread on the same certified stone. NZ Jewellers lists it at £4,544. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1538747711
Dimensions6.64 × 6.62 × 4.16 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
6.64 mm6.62 mm1.13 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1538747711
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 31
Current: £4,544 GBP|Low: £1,542 GBP|High: £4,544 GBP|Avg: £2,439 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
November 1, 2026
Retailer 7£1,851 GBP
Retailer 14£1,916 GBP
Retailer 12£1,941 GBP
Retailer 6£2,011 GBP
Retailer 10£2,157 GBP
Retailer 15£2,157 GBP
Retailer 3£2,174 GBP
Retailer 4£2,269 GBP
Retailer 13£2,269 GBP
Retailer 9£2,333 GBP
Retailer 11£2,351 GBP
Retailer 2£2,405 GBP
Retailer 5£3,163 GBP
Retailer 8£3,635 GBP
NZ Jewellers£4,544 GBP

43 data points across 15 retailers

15 retailers£1,851 GBP to £4,544 GBP

A
Cheapest Retailer
-
£1,851 GBP
$2,480 USD
Final sale: no returns
A
Retailer 2
-
£1,916 GBP
$2,567 USD
View
A
Retailer 3
-
£1,941 GBP
$2,601 USD
View
A
Retailer 4
-
£2,011 GBP
SGD 3,641 SGD
View
B+
Retailer 5
-
£2,157 GBP
$2,890 USD
View
B+
Retailer 6
-
£2,157 GBP
$2,890 USD
View
B+
Retailer 7
-
£2,174 GBP
CA$4,046 CAD
View
B+
Retailer 8
-
£2,269 GBP
$3,040 USD
View
B+
Retailer 9
-
£2,269 GBP
$3,040 USD
View
B+
Retailer 10
-
£2,333 GBP
View
B+
Retailer 11
-
£2,351 GBP
$3,150 USD
View
B+
Retailer 12
-
£2,405 GBP
€3,069 EUR
View
B
Retailer 13
-
£3,163 GBP
$4,239 USD
View
B
Retailer 14
-
£3,635 GBP
View
Most Expensive
B
NZ Jewellers
ac5d03f7-3220-4376-abd4-851e3123742f · Oct 30
£4,544 GBP
$6,089 USD
View
14 more retailers have this diamond
Prices start from £1,851 GBPSave up to £2,694 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
£1,851 GBP