CaratHunter
Plans
Marquise|Natural|GIA

1.00ct E SI1 Marquise Natural Diamond

EX • E/SI1 • GIA 7548620057

Certificate GIA 7548620057

Diamond specifications and retailer prices

From £1,981 GBP
As of November 4, 2026
Save £2,323 GBP (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £4,619 GBP at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548620057. Listed at 23 retailers as of November 4, 2026, with a 117% 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

1.00
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7548620057
Dimensions10.00 × 5.19 × 3.12 mm
L/W Ratio1.93
Girdle conditionFaceted
Cert comments
Additional twinning wisps clouds pinpoints and surface graining are not shown.
Key to symbols
Twinning Wisp, Crystal, Feather, Indented Natural, Needle
Top View
10.00 mm5.19 mm1.00 ctE / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7548620057
Side View
Table 57.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 60.1%

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 4
Current: £2,031 GBP|Low: £1,933 GBP|High: £4,724 GBP|Avg: £2,667 GBP
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
Retailer 21
Retailer 22
November 6, 2026
Retailer 14£1,978 GBP
Retailer 22£1,981 GBP
Retailer 1£2,031 GBP
Retailer 11£2,042 GBP
Retailer 3£2,068 GBP
Retailer 7£2,094 GBP
Retailer 12£2,144 GBP
Retailer 4£2,158 GBP
Retailer 2£2,270 GBP
Retailer 9£2,352 GBP
Retailer 20£2,448 GBP
Retailer 8£2,540 GBP
Retailer 5£2,652 GBP
Retailer 6£2,652 GBP
Retailer 17£2,654 GBP
Retailer 10£2,742 GBP
Retailer 13£2,754 GBP
Retailer 15£2,780 GBP
Retailer 16£2,828 GBP
Retailer 18£3,150 GBP
Retailer 21£3,725 GBP
Retailer 19£4,303 GBP

33 data points across 22 retailers

23 retailers£1,981 GBP to £4,303 GBP

Retailer 1
-
£1,978 GBP
Price last confirmed 20 days ago
A
Retailer 2
-
£1,981 GBP
View
A
Retailer 3
-
£2,014 GBP
View
A
Retailer 4
-
£2,031 GBP
View
A
Retailer 5
-
£2,068 GBP
View
A
Retailer 6
-
£2,094 GBP
View
A
Retailer 7
-
£2,144 GBP
View
A
Retailer 8
-
£2,154 GBP
View
A
Retailer 9
-
£2,158 GBP
View
Final sale: no returns
A
Retailer 10
-
£2,270 GBP
View
A
Retailer 11
-
£2,352 GBP
View
B+
Retailer 12
-
£2,448 GBP
View
B+
Retailer 13
-
£2,540 GBP
View
Retailer 14
-
£2,652 GBP
View
Price last confirmed 29 days ago
B+
Retailer 15
-
£2,652 GBP
View
B+
Retailer 16
-
£2,652 GBP
View
B+
Retailer 17
-
£2,654 GBP
View
B+
Retailer 18
-
£2,742 GBP
View
B+
Retailer 19
-
£2,828 GBP
View
B+
Retailer 20
-
£3,150 GBP
View
B
Retailer 21
-
£3,725 GBP
View
B
Retailer 22
-
£4,303 GBP
View
Most Expensive
NZ Jewellers
6d4e97eb-de4e-4ea4-be78-e29edad595c7 · Sep 29
£4,619 GBP
$6,217 USD
View
Price last confirmed 37 days ago
22 more retailers have this diamond
Prices start from £1,981 GBPSave up to £2,323 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
1.00ct Marquise
£1,981 GBP