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Round|Natural|GIA

1.30ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2554743014

Certificate GIA 2554743014

Diamond specifications and retailer prices

From £3,680 GBP
As of November 6, 2026
Save £4,705 GBP (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £8,385 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554743014. Listed at 10 retailers as of November 5, 2026, with prices from £3,680 to £8,385, a £4,705 spread on the same certified stone. NZ Jewellers lists it at £8,385. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2554743014
Dimensions6.91 × 6.96 × 4.32 mm
L/W Ratio1.01
Key to symbols
Cloud, Crystal, Feather, Indented Natural
Top View
6.91 mm6.96 mm1.30 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554743014
Side View
Table 59.0%CrownGirdle: Slightly ThickPavilion 41°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: Nov 6
Current: £8,385 GBP|Low: £3,680 GBP|High: £8,740 GBP|Avg: £5,452 GBP|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 8£3,680 GBP
Retailer 3£4,127 GBP
Retailer 9£4,291 GBP
Retailer 7£4,338 GBP
Retailer 6£5,013 GBP
Retailer 5£5,090 GBP
Retailer 4£5,297 GBP
Retailer 2£7,365 GBP
NZ Jewellers£8,385 GBP

42 data points across 9 retailers

10 retailers£3,680 GBP to £8,385 GBP

A
Cheapest Retailer
-
£3,680 GBP
B+
Retailer 2
-
£4,127 GBP
View
Retailer 3
-
£4,291 GBP
View
Price last confirmed 22 days ago
B+
Retailer 4
-
£4,338 GBP
View
B+
Retailer 5
-
£4,954 GBP
View
B+
Retailer 6
-
£5,013 GBP
View
B+
Retailer 7
-
£5,090 GBP
View
B+
Retailer 8
-
£5,297 GBP
View
B
Retailer 9
-
£7,365 GBP
View
Most Expensive
B
NZ Jewellers
21da68a6-8e4a-4146-8fdd-64fd4e0fcf60 · Nov 5
£8,385 GBP
$11,285 USD
View
9 more retailers have this diamond
Prices start from £3,680 GBPSave up to £4,705 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
£3,680 GBP