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Round|Natural|GIA

1.13ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555970685

Certificate GIA 6555970685

Diamond specifications and retailer prices

From £1,298 GBP
SGD 2,351 SGD
As of October 31, 2026
Save £1,229 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,527 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 6555970685. Listed at 12 retailers as of October 26, 2026, with prices from £1,298 to £2,527, a £1,229 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,527. 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 angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6555970685
Dimensions6.65 × 6.70 × 4.15 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.65 mm6.70 mm1.13 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555970685
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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: £1,943 GBP|Low: £1,298 GBP|High: £2,692 GBP|Avg: £1,884 GBP|-5.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
October 30, 2026
Retailer 10£1,298 GBP
Retailer 8£1,511 GBP
Retailer 7£1,526 GBP
Retailer 6£1,539 GBP
Retailer 3£1,676 GBP
Retailer 4£1,688 GBP
Retailer 11£1,827 GBP
Retailer 2£1,941 GBP
Retailer 1£1,943 GBP
Retailer 5£2,179 GBP
Retailer 9£2,346 GBP
Wholesale Diamonds Direct£2,527 GBP

38 data points across 12 retailers

12 retailers£1,298 GBP to £2,527 GBP

A
Cheapest Retailer
-
£1,298 GBP
SGD 2,351 SGD
A
Retailer 2
-
£1,511 GBP
$2,024 USD
View
A
Retailer 3
-
£1,526 GBP
$2,045 USD
View
A
Retailer 4
-
£1,539 GBP
$2,063 USD
View
A
Retailer 5
-
£1,676 GBP
SGD 3,035 SGD
View
A
Retailer 6
-
£1,688 GBP
View
A
Retailer 7
-
£1,827 GBP
$2,448 USD
View
A
Retailer 8
-
£1,941 GBP
$2,601 USD
View
A
Retailer 9
-
£1,943 GBP
View
B+
Retailer 10
-
£2,179 GBP
€2,780 EUR
View
B+
Retailer 11
-
£2,346 GBP
$3,144 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
545945732 · Oct 26
£2,527 GBP
$3,386 USD
View
11 more retailers have this diamond
Prices start from £1,298 GBPSave up to £1,229 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
£1,298 GBP