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Marquise|Natural|GIA

0.53ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 6551657449

Certificate GIA 6551657449

Diamond specifications and retailer prices

From £359 GBP
$481 USD
As of November 2, 2026
Save £877 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,236 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.53ct natural marquise diamond

This 0.53ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551657449. Listed at 14 retailers as of October 30, 2026, with prices from £359 to £1,236, a £877 spread on the same certified stone. NZ Jewellers lists it at £1,236. 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

0.53
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551657449
Dimensions7.80 × 4.34 × 2.71 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal
Top View
7.80 mm4.34 mm0.53 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551657449
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,236 GBP|Low: £359 GBP|High: £1,302 GBP|Avg: £569 GBP|-5.0%
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
November 2, 2026
Retailer 8£359 GBP
Retailer 9£390 GBP
Retailer 5£416 GBP
Retailer 10£418 GBP
Retailer 3£425 GBP
Retailer 13£425 GBP
Retailer 14£429 GBP
Retailer 11£455 GBP
Retailer 2£479 GBP
Retailer 7£489 GBP
Retailer 12£524 GBP
Retailer 6£612 GBP
Retailer 4£912 GBP
NZ Jewellers£1,236 GBP

34 data points across 14 retailers

14 retailers£359 GBP to £1,236 GBP

A
Cheapest Retailer
-
£359 GBP
$481 USD
Final sale: no returns
A
Retailer 2
-
£390 GBP
$523 USD
View
A
Retailer 3
-
£416 GBP
$558 USD
View
A
Retailer 4
-
£418 GBP
$560 USD
View
A
Retailer 5
-
£425 GBP
$569 USD
View
A
Retailer 6
-
£425 GBP
$569 USD
View
A
Retailer 7
-
£429 GBP
SGD 776 SGD
View
A
Retailer 8
-
£455 GBP
$609 USD
View
A
Retailer 9
-
£479 GBP
View
A
Retailer 10
-
£489 GBP
View
B+
Retailer 11
-
£524 GBP
$702 USD
View
Retailer 12
-
£612 GBP
A$1,261 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
£912 GBP
View
Most Expensive
B
NZ Jewellers
638f8074-8ac3-4f19-a6b3-2002f86476d3 · Oct 30
£1,236 GBP
$1,656 USD
View
13 more retailers have this diamond
Prices start from £359 GBPSave up to £877 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
0.53ct Marquise
£359 GBP