Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 2155659891

Certificate GIA 2155659891

Diamond specifications and retailer prices

From £4,832 GBP
$6,474 USD
As of October 29, 2026
Save £2,948 GBP (38%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £10,687 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2155659891. Listed at 23 retailers as of October 27, 2026, with a 61% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2155659891
Dimensions6.51 × 6.48 × 3.89 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.51 mm6.48 mm1.01 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2155659891
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 59.8%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £5,911 GBP|Low: £4,453 GBP|High: £9,012 GBP|Avg: £6,543 GBP|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 6£4,825 GBP
Retailer 7£5,344 GBP
Retailer 1£5,911 GBP
Retailer 5£6,048 GBP
Retailer 2£6,637 GBP
Retailer 4£7,780 GBP
Retailer 3£8,952 GBP

42 data points across 7 retailers

23 retailers£4,832 GBP to £7,780 GBP

Retailer 1
-
£4,825 GBP
$6,465 USD
Price last confirmed 9 days ago
B
Retailer 2
-
£4,832 GBP
$6,474 USD
View
B
Retailer 3
-
£5,003 GBP
$6,703 USD
View
B
Retailer 4
-
£5,277 GBP
CA$9,821 CAD
View
B
Retailer 5
-
£5,340 GBP
$7,155 USD
View
B
Retailer 6
-
£5,344 GBP
$7,160 USD
View
Final sale: no returns
B
Retailer 7
-
£5,344 GBP
$7,160 USD
View
Retailer 8
-
£5,437 GBP
$7,285 USD
View
B
Retailer 9
-
£5,789 GBP
$7,756 USD
View
B
Retailer 10
-
£5,878 GBP
$7,876 USD
View
B
Retailer 11
-
£5,911 GBP
View
Retailer 12
-
£6,048 GBP
A$12,468 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
£6,333 GBP
$8,486 USD
View
B
Retailer 14
-
£6,374 GBP
$8,540 USD
View
B
Retailer 15
-
£6,374 GBP
$8,540 USD
View
B
Retailer 16
-
£6,590 GBP
$8,830 USD
View
B
Retailer 17
-
£6,637 GBP
€8,470 EUR
View
B
Retailer 18
-
£6,680 GBP
$8,950 USD
View
Retailer 19
-
£7,038 GBP
$9,430 USD
View
Price last confirmed 7 days ago
B
Retailer 20
-
£7,780 GBP
ZAR 168,408 ZAR
View
Retailer 21
-
£8,952 GBP
View
Price under review
Retailer 22
-
£9,769 GBP
View
Price under review
Most Expensive
NZ Jewellers
f516f942-039c-4f6e-b33e-34be1018c57d · Oct 30
£10,687 GBP
$14,319 USD
View
Price under review
22 more retailers have this diamond
Prices start from £4,832 GBPSave up to £2,948 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.

B
1.01ct Round
£4,832 GBP