Marquise|Natural|GIA

0.53ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 6551998621

Certificate GIA 6551998621

Diamond specifications and retailer prices

From £401 GBP
As of November 6, 2026
Save £711 GBP (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,566 GBP at NZ Jewellers · As of September 21, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551998621. Listed at 21 retailers as of November 4, 2026, with a 177% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551998621
Dimensions7.66 × 4.34 × 2.76 mm
L/W Ratio1.76
Key to symbols
Crystal, Feather
Top View
7.66 mm4.34 mm0.53 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6551998621
Side View
Table 58.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.6%

Caratlytics Score

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

Price History

Last verified: Nov 6
Current: £1,514 GBP|Low: £391 GBP|High: £1,566 GBP|Avg: £674 GBP|-3.3%
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
November 5, 2026
Retailer 11£401 GBP
Retailer 10£445 GBP
Retailer 9£483 GBP
Retailer 4£499 GBP
Retailer 13£501 GBP
Retailer 3£557 GBP
Retailer 12£581 GBP
Retailer 2£588 GBP
Retailer 8£604 GBP
Retailer 5£671 GBP
Retailer 7£707 GBP
Retailer 6£1,112 GBP
NZ Jewellers£1,514 GBP

41 data points across 13 retailers

21 retailers£401 GBP to £1,112 GBP

A
Cheapest Retailer
-
£401 GBP
A
Retailer 2
-
£445 GBP
View
Final sale: no returns
Retailer 3
-
£483 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£499 GBP
View
Price last confirmed 44 days ago
Retailer 5
-
£499 GBP
View
Price last confirmed 47 days ago
Retailer 6
-
£501 GBP
View
Price last confirmed 10 days ago
Retailer 7
-
£520 GBP
View
Price last confirmed 21 days ago
Retailer 8
-
£520 GBP
View
Price last confirmed 21 days ago
Retailer 9
-
£557 GBP
View
Price last confirmed 16 days ago
Retailer 10
-
£576 GBP
View
Price last confirmed 38 days ago
Retailer 11
-
£576 GBP
View
Price last confirmed 45 days ago
B+
Retailer 12
-
£581 GBP
View
B+
Retailer 13
-
£588 GBP
View
B+
Retailer 14
-
£604 GBP
View
Retailer 15
-
£671 GBP
View
Price last confirmed 19 days ago
B+
Retailer 16
-
£707 GBP
View
B
Retailer 17
-
£1,112 GBP
View
Retailer 18
-
£1,514 GBP
View
Price last confirmed 16 days ago
Retailer 19
-
£1,566 GBP
View
Price under review
Retailer 20
-
£1,566 GBP
View
Price under review
Most Expensive
NZ Jewellers
c0bf9cd3-78e8-4972-a03c-6880436f00ed · Sep 21
£1,566 GBP
$2,096 USD
View
Price under review
20 more retailers have this diamond
Prices start from £401 GBPSave up to £711 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
£401 GBP