Marquise|Natural|GIA

1.22ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 2556354595

Certificate GIA 2556354595

Diamond specifications and retailer prices

From £3,688 GBP
As of November 2, 2026
Save £2,835 GBP (43%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £7,405 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.22ct natural marquise diamond

This 1.22ct 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 2556354595. Listed at 13 retailers as of November 2, 2026, with a 77% 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

1.22
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle42.53°
Pavilion angle38.1°
OriginNatural
Grading LabGIA
CertificateGIA 2556354595
Dimensions10.15 × 5.62 × 3.43 mm
L/W Ratio1.81
Girdle conditionExtremely Thick
Culet sizeNone
Top View
10.15 mm5.62 mm1.22 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556354595
Side View
Table 64.0%Crown 42.53°Girdle: Thick to Extremely ThickPavilion 38.1°Culet: NDepth 61.0%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £7,405 GBP|Low: £3,304 GBP|High: £7,405 GBP|Avg: £4,514 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 2, 2026
Retailer 11£3,304 GBP
Retailer 3£3,688 GBP
Retailer 10£3,798 GBP
Retailer 6£3,807 GBP
Retailer 13£3,975 GBP
Retailer 8£4,122 GBP
Retailer 5£4,244 GBP
Retailer 4£4,416 GBP
Retailer 12£4,527 GBP
Retailer 14£4,527 GBP
Retailer 9£4,677 GBP
Retailer 2£4,836 GBP
Retailer 7£6,523 GBP
NZ Jewellers£7,405 GBP

15 data points across 14 retailers

13 retailers£3,688 GBP to £6,523 GBP

Retailer 1
-
£3,304 GBP
Price last confirmed 9 days ago
B+
Retailer 2
-
£3,688 GBP
View
B
Retailer 3
-
£3,798 GBP
View
B
Retailer 4
-
£3,975 GBP
View
B
Retailer 5
-
£4,122 GBP
View
Retailer 6
-
£4,244 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£4,416 GBP
View
Retailer 8
-
£4,527 GBP
View
Price last confirmed 7 days ago
Retailer 9
-
£4,527 GBP
View
Price last confirmed 7 days ago
Retailer 10
-
£4,677 GBP
View
Price last confirmed 7 days ago
B
Retailer 11
-
£4,836 GBP
View
B
Retailer 12
-
£6,523 GBP
View
Most Expensive
NZ Jewellers
9d1f56dc-8b19-4115-a32c-73361759b479 · Oct 30
£7,405 GBP
$9,912 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from £3,688 GBPSave up to £2,835 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+
1.22ct Marquise
£3,688 GBP