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Marquise|Natural|GIA

0.56ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 2557095683

Certificate GIA 2557095683

Diamond specifications and retailer prices

From £320 GBP
As of November 6, 2026
Save £320 GBP (50%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £640 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 0.56ct natural marquise diamond

This 0.56ct natural marquise sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557095683. Listed at 3 retailers as of November 5, 2026, with prices from £320 to £640, a £320 spread on the same certified stone. 77 Diamonds lists it at £640. 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

0.56
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557095683
Dimensions6.95 × 4.51 × 2.91 mm
L/W Ratio1.54
Top View
6.95 mm4.51 mm0.56 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557095683
Side View
Table 59.0%CrownGirdle: STK-XTKPavilionCulet: NoneDepth 64.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £640 GBP|Low: £320 GBP|High: £647 GBP|Avg: £501 GBP|+0.2%
77 Diamonds
Retailer 2
Retailer 3
November 6, 2026
Retailer 2£320 GBP
Retailer 3£536 GBP
77 Diamonds£640 GBP

46 data points across 3 retailers

3 retailers£320 GBP to £640 GBP

A
Cheapest Retailer
-
£320 GBP
B+
Retailer 2
-
£536 GBP
View
Most Expensive
B
77 Diamonds
MQCPK5SRPVPW · Nov 5
£640 GBP
View
2 more retailers have this diamond
Prices start from £320 GBPSave up to £320 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.

A
0.56ct Marquise
£320 GBP