CaratHunter
Plans
Marquise|Natural|GIA

1.00ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 5556938367

Certificate GIA 5556938367

Diamond specifications and retailer prices

From £1,511 GBP
As of November 6, 2026
Save £2,010 GBP (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,220 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5556938367. Listed at 17 retailers as of November 2, 2026, with a 133% 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

1.00
Carat
G
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556938367
Dimensions9.42 × 5.18 × 3.30 mm
L/W Ratio1.82
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
9.42 mm5.18 mm1.00 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556938367
Side View
Table 65.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 63.8%

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: £4,220 GBP|Low: £1,501 GBP|High: £4,220 GBP|Avg: £2,402 GBP
NZ Jewellers
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
November 6, 2026
Retailer 12£1,511 GBP
Retailer 2£1,570 GBP
Retailer 9£1,778 GBP
Retailer 14£1,854 GBP
Retailer 5£2,019 GBP
Retailer 4£2,096 GBP
Retailer 8£2,114 GBP
Retailer 13£2,114 GBP
Retailer 11£2,189 GBP
Retailer 6£2,329 GBP
Retailer 7£2,495 GBP
Retailer 10£3,520 GBP
Retailer 3£3,667 GBP
NZ Jewellers£4,220 GBP

30 data points across 14 retailers

17 retailers£1,511 GBP to £3,520 GBP

A
Cheapest Retailer
-
£1,511 GBP
A
Retailer 2
-
£1,570 GBP
View
A
Retailer 3
-
£1,778 GBP
View
A
Retailer 4
-
£1,854 GBP
View
Final sale: no returns
B+
Retailer 5
-
£1,889 GBP
View
Retailer 6
-
£2,019 GBP
View
Price last confirmed 21 days ago
Retailer 7
-
£2,019 GBP
View
Price last confirmed 19 days ago
B+
Retailer 8
-
£2,019 GBP
View
Retailer 9
-
£2,096 GBP
View
Price last confirmed 21 days ago
B+
Retailer 10
-
£2,114 GBP
View
B+
Retailer 11
-
£2,114 GBP
View
B+
Retailer 12
-
£2,189 GBP
View
Retailer 13
-
£2,329 GBP
View
Price last confirmed 18 days ago
B+
Retailer 14
-
£2,495 GBP
View
B
Retailer 15
-
£3,520 GBP
View
Retailer 16
-
£3,667 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
26b1b462-ea92-4a6d-8335-6bd2a09042ac · Oct 17
£4,220 GBP
$5,648 USD
View
Price last confirmed 19 days ago
16 more retailers have this diamond
Prices start from £1,511 GBPSave up to £2,010 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
£1,511 GBP