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Marquise|Natural|GIA

0.51ct E SI1 Marquise Natural Diamond

VG • E/SI1 • GIA 2568696492

Certificate GIA 2568696492

Diamond specifications and retailer prices

From £389 GBP
₹49,601 INR
As of October 29, 2026
Save £1,222 GBP (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,611 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2568696492. Listed at 17 retailers as of October 29, 2026, with prices from £389 to £1,611, a £1,222 spread on the same certified stone. NZ Jewellers lists it at £1,611. 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
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2568696492
Dimensions8.01 × 4.21 × 2.64 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
8.01 mm4.21 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2568696492
Side View
Table 62.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.6%

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: Oct 29
Current: £1,611 GBP|Low: £357 GBP|High: £1,611 GBP|Avg: £634 GBP
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 14£389 GBP
Retailer 9£440 GBP
Retailer 4£474 GBP
Retailer 10£475 GBP
Retailer 3£513 GBP
Retailer 16£513 GBP
Retailer 17£533 GBP
Retailer 11£589 GBP
Retailer 6£593 GBP
Retailer 7£612 GBP
Retailer 12£632 GBP
Retailer 13£634 GBP
Retailer 8£640 GBP
Retailer 15£649 GBP
Retailer 5£705 GBP
Retailer 2£793 GBP
NZ Jewellers£1,611 GBP

8 data points across 17 retailers

17 retailers£389 GBP to £1,611 GBP

A
Cheapest Retailer
-
£389 GBP
₹49,601 INR
A
Retailer 2
-
£440 GBP
$589 USD
View
B+
Retailer 3
-
£474 GBP
$635 USD
View
Final sale: no returns
A
Retailer 4
-
£475 GBP
A$980 AUD
View
A
Retailer 5
-
£513 GBP
$688 USD
View
A
Retailer 6
-
£513 GBP
$688 USD
View
A
Retailer 7
-
£533 GBP
$714 USD
View
A
Retailer 8
-
£589 GBP
$789 USD
View
B+
Retailer 9
-
£593 GBP
$794 USD
View
B+
Retailer 10
-
£612 GBP
$820 USD
View
B+
Retailer 11
-
£632 GBP
View
B+
Retailer 12
-
£634 GBP
View
B+
Retailer 13
-
£640 GBP
$857 USD
View
B+
Retailer 14
-
£649 GBP
$870 USD
View
B+
Retailer 15
-
£705 GBP
$944 USD
View
B
Retailer 16
-
£793 GBP
ZAR 17,156 ZAR
View
Most Expensive
B
NZ Jewellers
1c7f8336-3a2d-4f4c-8a77-82a361f916a0 · Oct 30
£1,611 GBP
$2,158 USD
View
16 more retailers have this diamond
Prices start from £389 GBPSave up to £1,222 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
0.51ct Marquise
£389 GBP