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Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

GD • D/SI1 • GIA 6532091222

Certificate GIA 6532091222

Diamond specifications and retailer prices

From £413 GBP
$553 USD
As of October 28, 2026
Save £990 GBP (71%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,403 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6532091222. Listed at 16 retailers as of October 27, 2026, with prices from £413 to £1,403, a £990 spread on the same certified stone. NZ Jewellers lists it at £1,403. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6532091222
Dimensions6.30 × 4.40 × 2.74 mm
L/W Ratio1.43
Top View
6.30 mm4.40 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6532091222
Side View
Table 59.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 62.2%

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 28
Current: £1,403 GBP|Low: £378 GBP|High: £1,403 GBP|Avg: £626 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
October 28, 2026
Retailer 4£413 GBP
Retailer 3£448 GBP
Retailer 13£455 GBP
Retailer 6£482 GBP
Retailer 14£482 GBP
Retailer 12£485 GBP
Retailer 15£516 GBP
Retailer 2£547 GBP
Retailer 8£552 GBP
Retailer 7£590 GBP
Retailer 9£657 GBP
Retailer 5£673 GBP
Retailer 11£689 GBP
Retailer 10£1,035 GBP
NZ Jewellers£1,403 GBP

28 data points across 15 retailers

16 retailers£413 GBP to £1,403 GBP

B+
Cheapest Retailer
-
£413 GBP
$553 USD
Final sale: no returns
B+
Retailer 2
-
£448 GBP
$600 USD
View
Retailer 3
-
£455 GBP
$610 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
£482 GBP
$646 USD
View
B+
Retailer 5
-
£482 GBP
$646 USD
View
A
Retailer 6
-
£485 GBP
$650 USD
View
B+
Retailer 7
-
£516 GBP
$692 USD
View
B+
Retailer 8
-
£547 GBP
View
B+
Retailer 9
-
£552 GBP
View
B+
Retailer 10
-
£569 GBP
$762 USD
View
B+
Retailer 11
-
£590 GBP
$790 USD
View
B+
Retailer 12
-
£657 GBP
€839 EUR
View
Retailer 13
-
£673 GBP
A$1,387 AUD
View
Price last confirmed 27 days ago
B
Retailer 14
-
£689 GBP
ZAR 14,920 ZAR
View
B
Retailer 15
-
£1,035 GBP
View
Most Expensive
C
NZ Jewellers
2f58ca5f-26b3-4020-8314-e1ae6212af08 · Oct 27
£1,403 GBP
$1,880 USD
View
15 more retailers have this diamond
Prices start from £413 GBPSave up to £990 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 Oval
£413 GBP