Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5566129731

Certificate GIA 5566129731

Diamond specifications and retailer prices

From $653 USD
HK$5,100 HKD
Save $945 USD (59%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,702 USD at NZ Jewellers
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 5566129731. Listed at 24 retailers, with a 145% 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
SymmetryVery Good
FluorescenceFaint
Crown angle34.5°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 5566129731
Dimensions6.44 × 4.59 × 2.78 mm
L/W Ratio1.40
Culet sizeNone
Key to symbols
Crystal
Top View
6.44 mm4.59 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 5566129731
Side View
Table 64.0%Crown 34.5°Girdle: MED-THKPavilion 38.6°Culet: NoneDepth 60.5%

Caratlytics Score

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

Price History

Last verified: Sep 29
Current: $2,702 USD|Low: $649 USD|High: $2,702 USD|Avg: $1,104 USD
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
Retailer 21
October 1, 2026
Retailer 19$653 USD
Retailer 2$661 USD
Retailer 8$729 USD
Retailer 4$769 USD
Retailer 3$795 USD
Retailer 5$862 USD
Retailer 14$862 USD
Retailer 11$872 USD
Retailer 18$895 USD
Retailer 20$967 USD
Retailer 7$994 USD
Retailer 6$1,025 USD
Retailer 15$1,068 USD
Retailer 12$1,146 USD
Retailer 9$1,177 USD
Retailer 13$1,193 USD
Retailer 10$1,234 USD
Retailer 16$1,290 USD
Retailer 17$1,308 USD
Retailer 21$1,598 USD
NZ Jewellers$2,702 USD

26 data points across 21 retailers

24 retailers$653 USD to $1,598 USD

A
Cheapest Retailer
-
$653 USD
HK$5,100 HKD
A
Retailer 2
-
$661 USD
₹62,913 INR
View
B+
Retailer 3
-
$729 USD
View
B+
Retailer 4
-
$769 USD
View
B+
Retailer 5
-
$795 USD
View
B+
Retailer 6
-
$818 USD
SGD 1,105 SGD
View
B+
Retailer 7
-
$862 USD
View
B+
Retailer 8
-
$862 USD
View
B+
Retailer 9
-
$872 USD
View
B+
Retailer 10
-
$895 USD
View
B+
Retailer 11
-
$909 USD
SGD 1,228 SGD
View
B+
Retailer 12
-
$969 USD
£763 GBP
View
B
Retailer 13
-
$994 USD
View
B
Retailer 14
-
$995 USD
View
B
Retailer 15
-
$1,025 USD
View
B+
Retailer 16
-
$1,068 USD
£841 GBP
View
B
Retailer 17
-
$1,146 USD
View
B
Retailer 18
-
$1,193 USD
€1,136 EUR
View
B
Retailer 19
-
$1,201 USD
View
B
Retailer 20
-
$1,234 USD
View
B
Retailer 21
-
$1,290 USD
A$1,985 AUD
View
B
Retailer 22
-
$1,308 USD
ZAR 21,136 ZAR
View
B
Retailer 23
-
$1,598 USD
£1,258 GBP
View
Most Expensive
C
NZ Jewellers
4602bb7f-0c81-4db7-90e5-a0a5de6a7b7c · Sep 30
$2,702 USD
View
Price under review
23 more retailers have this diamond
Prices start from $653 USDSave up to $945 USD

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.

A
0.51ct Oval
$653 USD