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Round|Natural|GIA

1.30ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 5553140338

Certificate GIA 5553140338

Diamond specifications and retailer prices

From £1,693 GBP
As of November 6, 2026
Save £2,008 GBP (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £4,690 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553140338. Listed at 15 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.30
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 5553140338
Dimensions6.93 × 6.98 × 4.39 mm
L/W Ratio1.01
Top View
6.93 mm6.98 mm1.30 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553140338
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,690 GBP|Low: £1,673 GBP|High: £4,723 GBP|Avg: £2,549 GBP|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9£1,693 GBP
Retailer 2£1,752 GBP
Retailer 11£2,045 GBP
Retailer 12£2,048 GBP
Retailer 4£2,242 GBP
Retailer 3£2,251 GBP
Retailer 10£2,324 GBP
Retailer 6£2,335 GBP
Retailer 5£2,348 GBP
Retailer 7£2,578 GBP
Retailer 8£3,700 GBP
Queensmith£4,690 GBP

34 data points across 12 retailers

15 retailers£1,693 GBP to £3,700 GBP

A
Cheapest Retailer
-
£1,693 GBP
A
Retailer 2
-
£1,752 GBP
View
A
Retailer 3
-
£2,045 GBP
View
A
Retailer 4
-
£2,048 GBP
View
Final sale: no returns
A
Retailer 5
-
£2,251 GBP
View
Retailer 6
-
£2,321 GBP
View
Price last confirmed 39 days ago
A
Retailer 7
-
£2,324 GBP
View
Retailer 8
-
£2,328 GBP
View
Price last confirmed 38 days ago
A
Retailer 9
-
£2,335 GBP
View
A
Retailer 10
-
£2,348 GBP
View
A
Retailer 11
-
£2,578 GBP
View
Retailer 12
-
£2,586 GBP
View
Price last confirmed 38 days ago
B
Retailer 13
-
£3,700 GBP
View
Retailer 14
-
£4,043 GBP
View
Price last confirmed 39 days ago
Most Expensive
Queensmith
5553140338 · Oct 28
£4,690 GBP
View
Price last confirmed 8 days ago
14 more retailers have this diamond
Prices start from £1,693 GBPSave up to £2,008 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
1.30ct Round
£1,693 GBP