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Round|Natural|GIA

1.24ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6555566402

Certificate GIA 6555566402

Diamond specifications and retailer prices

From £2,086 GBP
A$4,300 AUD
As of November 1, 2026
Save £838 GBP (29%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £2,924 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 1.24ct natural round diamond

This 1.24ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555566402. Listed at 3 retailers as of October 30, 2026, with prices from £2,086 to £2,924, a £838 spread on the same certified stone. 77 Diamonds lists it at £2,924. 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

1.24
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555566402
Dimensions6.84 × 6.88 × 4.30 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
6.84 mm6.88 mm1.24 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555566402
Side View
Table 57.0%Crown 33.5°GirdlePavilion 41.6°CuletDepth 62.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £2,924 GBP|Low: £2,086 GBP|High: £2,924 GBP|Avg: £2,500 GBP|+0.3%
77 Diamonds
Retailer 2
Retailer 3
November 1, 2026
Retailer 3£2,086 GBP
Retailer 2£2,736 GBP
77 Diamonds£2,924 GBP

6 data points across 3 retailers

3 retailers£2,086 GBP to £2,924 GBP

B+
Cheapest Retailer
-
£2,086 GBP
A$4,300 AUD
B
Retailer 2
-
£2,736 GBP
€3,491 EUR
View
Most Expensive
B
77 Diamonds
RBZ6CDDMBMD · Oct 30
£2,924 GBP
View
2 more retailers have this diamond
Prices start from £2,086 GBPSave up to £838 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+
1.24ct Round
£2,086 GBP