Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 1493017308

Certificate GIA 1493017308

Diamond specifications and retailer prices

From €759 EUR
$848 USD
As of October 31, 2026
Save €915 EUR (55%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €2,217 EUR at NZ Jewellers · As of October 30, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1493017308. Listed at 20 retailers as of October 29, 2026, with a 121% 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

0.51
Carat
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1493017308
Dimensions6.36 × 4.56 × 2.86 mm
L/W Ratio1.39
Culet sizeNone
Key to symbols
Crystal
Top View
6.36 mm4.56 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1493017308
Side View
Table 62.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.8%

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: €2,217 EUR|Low: €759 EUR|High: €2,251 EUR|Avg: €1,100 EUR|-1.5%
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
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 9€759 EUR
Retailer 16€761 EUR
Retailer 8€808 EUR
Retailer 5€823 EUR
Retailer 11€823 EUR
Retailer 6€833 EUR
Retailer 17€856 EUR
Retailer 7€913 EUR
Retailer 4€951 EUR
Retailer 18€962 EUR
Retailer 3€1,003 EUR
Retailer 19€1,003 EUR
Retailer 20€1,038 EUR
Retailer 2€1,066 EUR
Retailer 10€1,199 EUR
Retailer 13€1,211 EUR
Retailer 12€1,225 EUR
Retailer 14€1,403 EUR
Retailer 15€1,674 EUR
NZ Jewellers€2,217 EUR

39 data points across 20 retailers

20 retailers€759 EUR to €1,674 EUR

B+
Cheapest Retailer
-
€759 EUR
$848 USD
Final sale: no returns
Retailer 2
-
€761 EUR
$850 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
€808 EUR
$903 USD
View
B+
Retailer 4
-
€823 EUR
$920 USD
View
B+
Retailer 5
-
€823 EUR
$920 USD
View
B+
Retailer 6
-
€833 EUR
$931 USD
View
B+
Retailer 7
-
€856 EUR
$956 USD
View
B+
Retailer 8
-
€913 EUR
$1,020 USD
View
B+
Retailer 9
-
€951 EUR
$1,062 USD
View
B+
Retailer 10
-
€962 EUR
$1,075 USD
View
B+
Retailer 11
-
€1,003 EUR
$1,120 USD
View
B+
Retailer 12
-
€1,003 EUR
$1,120 USD
View
B+
Retailer 13
-
€1,038 EUR
$1,160 USD
View
B+
Retailer 14
-
€1,066 EUR
£938 GBP
View
B
Retailer 15
-
€1,199 EUR
$1,339 USD
View
B
Retailer 16
-
€1,211 EUR
View
Retailer 17
-
€1,225 EUR
A$2,105 AUD
View
Price last confirmed 27 days ago
B
Retailer 18
-
€1,403 EUR
ZAR 25,330 ZAR
View
B
Retailer 19
-
€1,674 EUR
£1,473 GBP
View
Most Expensive
NZ Jewellers
3360d27d-0a55-485c-bf6c-69e6653dbffb · Oct 30
€2,217 EUR
$2,477 USD
View
Price under review
19 more retailers have this diamond
Prices start from €759 EURSave up to €915 EUR

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 Oval
€759 EUR