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Round|Natural|GIA

1.13ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 0364

Certificate GIA 0364

Diamond specifications and retailer prices

From £1,649 GBP
As of November 4, 2026
Save £143 GBP (8%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,792 GBP at B2C Jewels · As of November 4, 2026
View at B2C Jewels

About this 1.13ct natural round diamond

This 1.13ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 2 retailers as of November 4, 2026, with a relatively tight 9% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 0364
Dimensions6.79 × 6.84 mm
L/W Ratio1.01
Top View
6.79 mm6.84 mm1.13 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 0364
Side View
Table 61.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 4
Current: £1,792 GBP|Low: £1,649 GBP|High: £1,792 GBP|Avg: £1,701 GBP|+1.5%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2£1,649 GBP
B2C Jewels£1,792 GBP

3 data points across 2 retailers

2 retailers£1,649 GBP to £1,792 GBP

B+
Cheapest Retailer
-
£1,649 GBP
Most Expensive
B
B2C Jewels
20603203 · Nov 4
£1,792 GBP
$2,412 USD
View
1 more retailer has this diamond
Prices start from £1,649 GBPSave up to £143 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
£1,649 GBP