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Marquise|Natural|GIA

1.20ct D SI2 Marquise Natural Diamond

VG • D/SI2 • GIA 1553510515

Certificate GIA 1553510515

Diamond specifications and retailer prices

From £3,538 GBP
As of November 4, 2026
Save £3,558 GBP (50%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £8,255 GBP at NZ Jewellers · As of September 20, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1553510515. Listed at 22 retailers as of November 4, 2026, with a 101% 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

1.20
Carat
D
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553510515
Dimensions11.08 × 5.51 × 3.17 mm
L/W Ratio2.01
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural, Natural
Top View
11.08 mm5.51 mm1.20 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553510515
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 57.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £4,959 GBP|Low: £3,251 GBP|High: £7,310 GBP|Avg: £4,917 GBP|-0.2%
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
November 6, 2026
Retailer 15£3,538 GBP
Retailer 2£3,623 GBP
Retailer 4£3,773 GBP
Retailer 5£3,816 GBP
Retailer 7£3,818 GBP
Retailer 6£3,866 GBP
Retailer 3£4,039 GBP
Retailer 19£4,318 GBP
Retailer 8£4,503 GBP
Retailer 12£4,587 GBP
Retailer 10£4,642 GBP
Retailer 13£4,746 GBP
Retailer 9£4,879 GBP
Retailer 17£4,879 GBP
Retailer 1£4,959 GBP
Retailer 18£5,043 GBP
Retailer 11£5,884 GBP
Retailer 16£7,000 GBP
Retailer 14£7,097 GBP

21 data points across 19 retailers

22 retailers£3,538 GBP to £7,097 GBP

B+
Cheapest Retailer
-
£3,538 GBP
B+
Retailer 2
-
£3,623 GBP
View
B+
Retailer 3
-
£3,773 GBP
View
B+
Retailer 4
-
£3,816 GBP
View
B+
Retailer 5
-
£3,818 GBP
View
B
Retailer 6
-
£3,866 GBP
View
B
Retailer 7
-
£4,039 GBP
View
Final sale: no returns
B
Retailer 8
-
£4,318 GBP
View
Retailer 9
-
£4,471 GBP
View
Price last confirmed 45 days ago
B
Retailer 10
-
£4,503 GBP
View
B
Retailer 11
-
£4,587 GBP
View
Retailer 12
-
£4,642 GBP
View
Price last confirmed 14 days ago
B
Retailer 13
-
£4,746 GBP
View
B
Retailer 14
-
£4,879 GBP
View
B
Retailer 15
-
£4,879 GBP
View
B
Retailer 16
-
£4,959 GBP
View
B
Retailer 17
-
£5,043 GBP
View
Retailer 18
-
£5,160 GBP
View
Price last confirmed 61 days ago
Retailer 19
-
£5,160 GBP
View
Price last confirmed 45 days ago
B
Retailer 20
-
£7,000 GBP
View
B
Retailer 21
-
£7,097 GBP
View
Most Expensive
NZ Jewellers
82d65a82-34c3-4626-8871-b0ba597b5013 · Sep 20
£8,255 GBP
$11,049 USD
View
Price last confirmed 46 days ago
21 more retailers have this diamond
Prices start from £3,538 GBPSave up to £3,558 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
£3,538 GBP