CaratHunter
Plans
Marquise|Natural|GIA

0.51ct J SI2 Marquise Natural Diamond

GD • J/SI2 • GIA 7563130347

Certificate GIA 7563130347

Diamond specifications and retailer prices

From £398 GBP
As of October 31, 2026
Save £69 GBP (15%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £468 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7563130347. Listed at 2 retailers as of October 31, 2026, with prices from £398 to £468, a £69 spread on the same certified stone. 77 Diamonds lists it at £468. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
J
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7563130347
Dimensions7.60 × 4.11 × 2.74 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.60 mm4.11 mm0.51 ctJ / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7563130347
Side View
Table 58.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 66.5%

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: Oct 31
Current: £468 GBP|Low: £353 GBP|High: £468 GBP|Avg: £404 GBP|+10.4%
77 Diamonds
Retailer 2
Retailer 3
October 31, 2026
Retailer 2£369 GBP
Retailer 3£398 GBP
77 Diamonds£468 GBP

35 data points across 3 retailers

2 retailers£398 GBP to £468 GBP

B+
Cheapest Retailer
-
£398 GBP
Most Expensive
B
77 Diamonds
MQCPY7EEDCKN · Oct 31
£468 GBP
View
1 more retailer has this diamond
Prices start from £398 GBPSave up to £69 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+
0.51ct Marquise
£398 GBP