Round|Natural|GIA

1.07ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2566298151

Certificate GIA 2566298151

Diamond specifications and retailer prices

From £1,185 GBP
HK$12,400 HKD
As of October 29, 2026
Save £826 GBP (41%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,670 GBP at NZ Jewellers · As of October 3, 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 2566298151. Listed at 22 retailers as of October 28, 2026, with a 70% 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
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2566298151
Dimensions6.46 × 6.50 × 4.06 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.46 mm6.50 mm1.07 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566298151
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.7%

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: Oct 29
Current: £1,579 GBP|Low: £1,185 GBP|High: £4,376 GBP|Avg: £1,902 GBP|+21.5%
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
Retailer 20
October 30, 2026
Retailer 3£1,185 GBP
Retailer 4£1,317 GBP
Retailer 8£1,334 GBP
Retailer 1£1,579 GBP
Retailer 7£1,625 GBP
Retailer 16£1,631 GBP
Retailer 5£1,664 GBP
Retailer 6£1,664 GBP
Retailer 2£1,707 GBP
Retailer 20£1,717 GBP
Retailer 17£1,746 GBP
Retailer 13£1,756 GBP
Retailer 12£1,785 GBP
Retailer 14£1,862 GBP
Retailer 18£1,920 GBP
Retailer 15£1,982 GBP
Retailer 19£2,011 GBP
Retailer 10£2,132 GBP
Retailer 11£2,162 GBP
Retailer 9£3,109 GBP

25 data points across 20 retailers

22 retailers£1,185 GBP to £2,011 GBP

A
Cheapest Retailer
-
£1,185 GBP
HK$12,400 HKD
Retailer 2
-
£1,334 GBP
₹170,223 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
£1,579 GBP
$2,116 USD
View
Retailer 4
-
£1,625 GBP
SGD 2,943 SGD
View
Price last confirmed 16 days ago
A
Retailer 5
-
£1,631 GBP
A$3,361 AUD
View
Retailer 6
-
£1,647 GBP
$2,207 USD
View
Price last confirmed 17 days ago
A
Retailer 7
-
£1,664 GBP
$2,230 USD
View
A
Retailer 8
-
£1,664 GBP
$2,230 USD
View
A
Retailer 9
-
£1,707 GBP
View
A
Retailer 10
-
£1,717 GBP
$2,300 USD
View
A
Retailer 11
-
£1,746 GBP
$2,340 USD
View
Retailer 12
-
£1,756 GBP
$2,353 USD
View
Price last confirmed 22 days ago
A
Retailer 13
-
£1,785 GBP
$2,391 USD
View
Retailer 14
-
£1,817 GBP
$2,434 USD
View
Price last confirmed 16 days ago
B+
Retailer 15
-
£1,862 GBP
View
A
Retailer 16
-
£1,920 GBP
$2,573 USD
View
B+
Retailer 17
-
£1,982 GBP
$2,656 USD
View
B+
Retailer 18
-
£2,011 GBP
€2,566 EUR
View
Retailer 19
-
£2,132 GBP
ZAR 46,153 ZAR
View
Price last confirmed 20 days ago
Retailer 20
-
£2,162 GBP
A$4,456 AUD
View
Price last confirmed 25 days ago
Retailer 21
-
£3,109 GBP
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
23118c16-7fc8-4760-a626-6508c03fc450 · Oct 3
£3,670 GBP
$4,918 USD
View
Price last confirmed 29 days ago
21 more retailers have this diamond
Prices start from £1,185 GBPSave up to £826 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
£1,185 GBP