Round|Natural|GIA

1.30ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7551049922

Certificate GIA 7551049922

Diamond specifications and retailer prices

From £2,675 GBP
As of November 6, 2026
Save £2,654 GBP (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,845 GBP at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551049922. Listed at 22 retailers as of November 4, 2026, with a 99% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7551049922
Dimensions6.96 × 6.90 × 4.33 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural, Natural
Top View
6.96 mm6.90 mm1.30 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551049922
Side View
Table 59.0%Crown 36°Girdle: ThinPavilion 41°Culet: NoneDepth 62.5%

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: £3,598 GBP|Low: £2,581 GBP|High: £5,408 GBP|Avg: £3,588 GBP|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 6, 2026
Retailer 18£2,675 GBP
Retailer 17£2,805 GBP
Retailer 16£2,895 GBP
Retailer 7£3,030 GBP
Retailer 19£3,071 GBP
Retailer 10£3,088 GBP
Retailer 2£3,189 GBP
Retailer 6£3,355 GBP
Retailer 8£3,355 GBP
Retailer 13£3,377 GBP
Retailer 9£3,519 GBP
Retailer 3£3,543 GBP
Retailer 4£3,579 GBP
Retailer 1£3,598 GBP
Retailer 5£3,872 GBP
Retailer 12£4,093 GBP
Retailer 11£4,317 GBP
Retailer 15£4,901 GBP
Retailer 14£5,329 GBP

36 data points across 19 retailers

22 retailers£2,675 GBP to £5,329 GBP

A
Cheapest Retailer
-
£2,675 GBP
A
Retailer 2
-
£2,805 GBP
View
Final sale: no returns
B+
Retailer 3
-
£2,895 GBP
View
B+
Retailer 4
-
£3,030 GBP
View
B+
Retailer 5
-
£3,071 GBP
View
B+
Retailer 6
-
£3,189 GBP
View
Retailer 7
-
£3,355 GBP
View
Price last confirmed 56 days ago
Retailer 8
-
£3,355 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£3,355 GBP
View
Price last confirmed 19 days ago
Retailer 10
-
£3,355 GBP
View
Price last confirmed 22 days ago
B+
Retailer 11
-
£3,377 GBP
View
B+
Retailer 12
-
£3,519 GBP
View
B+
Retailer 13
-
£3,543 GBP
View
Retailer 14
-
£3,579 GBP
View
Price last confirmed 28 days ago
B+
Retailer 15
-
£3,598 GBP
View
Retailer 16
-
£3,872 GBP
View
Price last confirmed 19 days ago
Retailer 17
-
£3,872 GBP
View
Price last confirmed 60 days ago
B
Retailer 18
-
£4,093 GBP
View
B
Retailer 19
-
£4,901 GBP
View
B
Retailer 20
-
£5,329 GBP
View
Retailer 21
-
£5,845 GBP
View
Price last confirmed 57 days ago
Most Expensive
NZ Jewellers
3573f6c1-b28c-4b65-88b6-f336e2c3e343 · Oct 17
£5,845 GBP
$7,824 USD
View
Price last confirmed 20 days ago
21 more retailers have this diamond
Prices start from £2,675 GBPSave up to £2,654 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
£2,675 GBP