Round|Natural|GIA

1.07ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2526780695

Certificate GIA 2526780695

Diamond specifications and retailer prices

From £1,490 GBP
HK$15,600 HKD
As of November 1, 2026
Save £2,021 GBP (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £4,347 GBP at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.07ct natural round diamond

This 1.07ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2526780695. Listed at 19 retailers as of November 1, 2026, with a 136% 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

1.07
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2526780695
Dimensions6.56 × 6.53 × 4.04 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Top View
6.56 mm6.53 mm1.07 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526780695
Side View
Table 59.0%Crown 34.5°Girdle: MD-STKPavilion 41.2°Culet: NoneDepth 61.7%

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 1
Current: £2,493 GBP|Low: £1,481 GBP|High: £3,687 GBP|Avg: £2,158 GBP|+4.4%
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
November 1, 2026
Retailer 13£1,490 GBP
Retailer 8£1,796 GBP
Retailer 14£1,843 GBP
Retailer 17£1,850 GBP
Retailer 7£1,859 GBP
Retailer 16£1,974 GBP
Retailer 5£2,005 GBP
Retailer 6£2,005 GBP
Retailer 9£2,075 GBP
Retailer 15£2,082 GBP
Retailer 3£2,110 GBP
Retailer 11£2,130 GBP
Retailer 2£2,246 GBP
Retailer 4£2,313 GBP
Retailer 12£2,464 GBP
Retailer 1£2,493 GBP
Retailer 10£3,512 GBP

37 data points across 17 retailers

19 retailers£1,490 GBP to £3,512 GBP

A
Cheapest Retailer
-
£1,490 GBP
HK$15,600 HKD
A
Retailer 2
-
£1,796 GBP
$2,406 USD
View
A
Retailer 3
-
£1,843 GBP
$2,470 USD
View
B+
Retailer 4
-
£1,850 GBP
$2,479 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,859 GBP
$2,491 USD
View
B+
Retailer 6
-
£1,974 GBP
$2,645 USD
View
Retailer 7
-
£2,005 GBP
$2,686 USD
View
Price last confirmed 10 days ago
Retailer 8
-
£2,005 GBP
$2,686 USD
View
Price last confirmed 16 days ago
B+
Retailer 9
-
£2,075 GBP
SGD 3,758 SGD
View
Retailer 10
-
£2,082 GBP
$2,789 USD
View
Price last confirmed 17 days ago
B+
Retailer 11
-
£2,110 GBP
$2,827 USD
View
B+
Retailer 12
-
£2,130 GBP
View
Retailer 13
-
£2,246 GBP
A$4,630 AUD
View
Price last confirmed 25 days ago
Retailer 14
-
£2,313 GBP
$3,099 USD
View
Price last confirmed 11 days ago
Retailer 15
-
£2,399 GBP
$3,215 USD
View
Price last confirmed 40 days ago
B+
Retailer 16
-
£2,464 GBP
ZAR 53,334 ZAR
View
B+
Retailer 17
-
£2,493 GBP
€3,181 EUR
View
B
Retailer 18
-
£3,512 GBP
View
Most Expensive
NZ Jewellers
022d2c1b-345c-4d00-aeec-e04c0c142c7d · Sep 19
£4,347 GBP
$5,825 USD
View
Price last confirmed 43 days ago
18 more retailers have this diamond
Prices start from £1,490 GBPSave up to £2,021 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
1.07ct Round
£1,490 GBP