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Marquise|Natural|GIA

0.54ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1549581511

Certificate GIA 1549581511

Diamond specifications and retailer prices

From £737 GBP
As of November 4, 2026
Save £687 GBP (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,423 GBP at Diamond Exchange Canada · As of November 5, 2026
View at Diamond Exchange Canada

About this 0.54ct natural marquise diamond

This 0.54ct natural marquise sits in the half to three-quarter 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 1549581511. Listed at 14 retailers as of November 4, 2026, with prices from £737 to £1,423, a £687 spread on the same certified stone. Diamond Exchange Canada lists it at £1,423. 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

0.54
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1549581511
Dimensions8.18 × 4.21 × 2.64 mm
L/W Ratio1.94
Girdle conditionFaceted
Top View
8.18 mm4.21 mm0.54 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549581511
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 40.6°Culet: NoneDepth 62.8%

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: £1,423 GBP|Low: £342 GBP|High: £1,423 GBP|Avg: £787 GBP
Diamond Exchange Canada
Retailer 2
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Retailer 22
November 6, 2026
Retailer 12£342 GBP
Retailer 9£516 GBP
Retailer 14£575 GBP
Retailer 6£576 GBP
Retailer 15£593 GBP
Retailer 8£605 GBP
Retailer 7£617 GBP
Retailer 10£691 GBP
Retailer 17£725 GBP
Retailer 22£737 GBP
Retailer 16£742 GBP
Retailer 20£773 GBP
Retailer 19£776 GBP
Retailer 18£895 GBP
Retailer 11£900 GBP
Retailer 3£956 GBP
Retailer 5£956 GBP
Retailer 21£988 GBP
Retailer 4£994 GBP
Retailer 2£1,130 GBP
Retailer 13£1,130 GBP
Diamond Exchange Canada£1,423 GBP

20 data points across 22 retailers

14 retailers£737 GBP to £1,423 GBP

Retailer 1
-
£725 GBP
Price last confirmed 20 days ago
B+
Retailer 2
-
£737 GBP
View
B+
Retailer 3
-
£742 GBP
View
B+
Retailer 4
-
£773 GBP
View
B+
Retailer 5
-
£776 GBP
View
B+
Retailer 6
-
£779 GBP
View
B+
Retailer 7
-
£895 GBP
View
B+
Retailer 8
-
£956 GBP
View
B+
Retailer 9
-
£956 GBP
View
B
Retailer 10
-
£988 GBP
View
B
Retailer 11
-
£994 GBP
View
B
Retailer 12
-
£1,130 GBP
View
B
Retailer 13
-
£1,130 GBP
View
Most Expensive
B
Diamond Exchange Canada
1983032469 · Nov 5
£1,423 GBP
CA$2,646 CAD
View
13 more retailers have this diamond
Prices start from £737 GBPSave up to £687 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+
0.54ct Marquise
£737 GBP