Marquise|Natural|GIA

1.20ct G SI1 Marquise Natural Diamond

VG • G/SI1 • GIA 5241080058

Certificate GIA 5241080058

Diamond specifications and retailer prices

From £4,411 GBP
As of November 5, 2026
15 retailers carry this diamond
Most expensive: £6,085 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct 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 5241080058. Listed at 15 retailers as of November 5, 2026. 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

1.20
Carat
G
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5241080058
Dimensions10.07 × 5.44 × 3.57 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.07 mm5.44 mm1.20 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5241080058
Side View
Table 60.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: £6,085 GBP|Low: £2,467 GBP|High: £6,108 GBP|Avg: £3,607 GBP|-0.4%
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 14£2,572 GBP
Retailer 3£2,697 GBP
Retailer 17£2,742 GBP
Retailer 6£2,886 GBP
Retailer 16£2,905 GBP
Retailer 13£3,022 GBP
Retailer 15£3,160 GBP
Retailer 11£3,170 GBP
Retailer 20£3,207 GBP
Retailer 9£3,224 GBP
Retailer 7£3,262 GBP
Retailer 10£3,318 GBP
Retailer 19£3,425 GBP
Retailer 12£3,535 GBP
Retailer 4£3,721 GBP
Retailer 18£4,341 GBP
Retailer 2£4,411 GBP
Retailer 8£5,077 GBP
Retailer 5£5,593 GBP
NZ Jewellers£6,085 GBP

20 data points across 20 retailers

15 retailers

Retailer 1
-
£2,572 GBP
Price last confirmed 13 days ago
Retailer 2
-
£2,697 GBP
View
Price last confirmed 19 days ago
Retailer 3
-
£2,742 GBP
View
Price last confirmed 14 days ago
Retailer 4
-
£2,886 GBP
View
Price last confirmed 22 days ago
Retailer 5
-
£2,905 GBP
View
Price last confirmed 15 days ago
Retailer 6
-
£3,160 GBP
View
Price last confirmed 15 days ago
Retailer 7
-
£3,170 GBP
View
Price last confirmed 17 days ago
Retailer 8
-
£3,207 GBP
View
Price last confirmed 17 days ago
Retailer 9
-
£3,262 GBP
View
Price last confirmed 19 days ago
Retailer 10
-
£3,535 GBP
View
Price last confirmed 28 days ago
Retailer 11
-
£4,341 GBP
View
Price last confirmed 15 days ago
B
Retailer 12
-
£4,411 GBP
View
Retailer 13
-
£5,077 GBP
View
Price last confirmed 18 days ago
Retailer 14
-
£5,593 GBP
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
39e3da08-f8da-43a9-aea3-0e6b6f963c7a · Oct 17
£6,085 GBP
$8,145 USD
View
Price last confirmed 19 days ago
14 more retailers have this diamond
Prices start from £4,411 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
1.20ct Marquise
£4,411 GBP