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Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 6561386222

Certificate GIA 6561386222

Diamond specifications and retailer prices

From £1,784 GBP
HK$18,700 HKD
As of November 1, 2026
Save £2,352 GBP (57%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,136 GBP at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6561386222. Listed at 21 retailers as of October 30, 2026, with prices from £1,784 to £4,136, a £2,352 spread on the same certified stone. NZ Jewellers lists it at £4,136. 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
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561386222
Dimensions9.60 × 5.11 × 3.36 mm
L/W Ratio1.88
Girdle conditionFaceted
Culet sizeNone
Top View
9.60 mm5.11 mm1.00 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6561386222
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.7%

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: £1,801 GBP|Low: £1,784 GBP|High: £4,013 GBP|Avg: £2,407 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 7£1,784 GBP
Retailer 1£1,801 GBP
Retailer 8£1,960 GBP
Retailer 2£2,032 GBP
Retailer 9£2,128 GBP
Retailer 3£2,315 GBP
Retailer 10£2,465 GBP
Retailer 5£2,484 GBP
Retailer 4£2,778 GBP
Retailer 6£3,970 GBP

23 data points across 10 retailers

21 retailers£1,784 GBP to £4,136 GBP

A
Cheapest Retailer
-
£1,784 GBP
HK$18,700 HKD
A
Retailer 2
-
£1,801 GBP
₹230,207 INR
View
Retailer 3
-
£1,960 GBP
€2,504 EUR
View
Price last confirmed 7 days ago
A
Retailer 4
-
£2,007 GBP
A$4,144 AUD
View
A
Retailer 5
-
£2,032 GBP
SGD 3,684 SGD
View
B+
Retailer 6
-
£2,090 GBP
$2,805 USD
View
B+
Retailer 7
-
£2,101 GBP
$2,820 USD
View
A
Retailer 8
-
£2,128 GBP
$2,856 USD
View
B+
Retailer 9
-
£2,191 GBP
$2,940 USD
View
Final sale: no returns
B+
Retailer 10
-
£2,227 GBP
$2,988 USD
View
B+
Retailer 11
-
£2,315 GBP
View
B+
Retailer 12
-
£2,373 GBP
$3,185 USD
View
B+
Retailer 13
-
£2,465 GBP
$3,308 USD
View
B+
Retailer 14
-
£2,484 GBP
View
B+
Retailer 15
-
£2,486 GBP
SGD 4,508 SGD
View
B+
Retailer 16
-
£2,670 GBP
$3,583 USD
View
B
Retailer 17
-
£2,739 GBP
$3,676 USD
View
B+
Retailer 18
-
£2,778 GBP
€3,551 EUR
View
Retailer 19
-
£3,458 GBP
$4,640 USD
View
Price last confirmed 7 days ago
B
Retailer 20
-
£3,970 GBP
View
Most Expensive
B
NZ Jewellers
729a124f-c196-42ae-af70-7fa3f136eb30 · Oct 30
£4,136 GBP
$5,550 USD
View
20 more retailers have this diamond
Prices start from £1,784 GBPSave up to £2,352 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
£1,784 GBP