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Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1569588431

Certificate GIA 1569588431

Diamond specifications and retailer prices

From £3,912 GBP
As of November 5, 2026
Save £3,201 GBP (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £7,113 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1569588431. Listed at 14 retailers as of November 5, 2026, with prices from £3,912 to £7,113, a £3,201 spread on the same certified stone. Wholesale Diamonds Direct lists it at £7,113. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.61°
Pavilion angle39.48°
OriginNatural
Grading LabGIA
CertificateGIA 1569588431
Dimensions11.02 × 5.68 × 3.34 mm
L/W Ratio1.94
Culet sizeNone
Top View
11.02 mm5.68 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569588431
Side View
Table 60.0%Crown 36.61°Girdle: MED-THKPavilion 39.48°Culet: NDepth 58.8%

Caratlytics Score

How it works →
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 5
Current: £4,233 GBP|Low: £3,912 GBP|High: £7,168 GBP|Avg: £4,874 GBP|-0.8%
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
Wholesale Diamonds Direct
November 6, 2026
Retailer 13£3,912 GBP
Retailer 5£4,013 GBP
Retailer 2£4,052 GBP
Retailer 10£4,127 GBP
Retailer 4£4,173 GBP
Retailer 3£4,229 GBP
Retailer 1£4,233 GBP
Retailer 8£4,421 GBP
Retailer 12£4,947 GBP
Retailer 7£4,961 GBP
Retailer 11£4,968 GBP
Retailer 6£5,544 GBP
Retailer 9£6,740 GBP
Wholesale Diamonds Direct£7,113 GBP

24 data points across 14 retailers

14 retailers£3,912 GBP to £7,113 GBP

B+
Cheapest Retailer
-
£3,912 GBP
B+
Retailer 2
-
£4,013 GBP
View
B+
Retailer 3
-
£4,052 GBP
View
B+
Retailer 4
-
£4,127 GBP
View
B+
Retailer 5
-
£4,173 GBP
View
B+
Retailer 6
-
£4,229 GBP
View
B+
Retailer 7
-
£4,233 GBP
View
B+
Retailer 8
-
£4,421 GBP
View
B
Retailer 9
-
£4,947 GBP
View
B
Retailer 10
-
£4,961 GBP
View
B
Retailer 11
-
£4,968 GBP
View
B
Retailer 12
-
£5,544 GBP
View
B
Retailer 13
-
£6,740 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
538592521 · Nov 6
£7,113 GBP
$9,521 USD
View
13 more retailers have this diamond
Prices start from £3,912 GBPSave up to £3,201 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
£3,912 GBP