CaratHunter
Plans
Oval|Natural|GIA

0.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 5563528487

Certificate GIA 5563528487

Diamond specifications and retailer prices

From $629 USD
As of October 29, 2026
Save $1,507 USD (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,136 USD 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5563528487. Listed at 15 retailers as of October 29, 2026, with prices from $629 to $2,136, a $1,507 spread on the same certified stone. NZ Jewellers lists it at $2,136. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32°
Pavilion angle42°
OriginNatural
Grading LabGIA
CertificateGIA 5563528487
Dimensions6.45 × 4.50 × 2.83 mm
L/W Ratio1.43
Key to symbols
Cloud
Top View
6.45 mm4.50 mm0.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5563528487
Side View
Table 61.0%Crown 32°Girdle: MED-THKPavilion 42°Culet: NoneDepth 62.8%

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: $2,136 USD|Low: $526 USD|High: $2,136 USD|Avg: $901 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
October 30, 2026
Retailer 4$629 USD
Retailer 13$630 USD
Retailer 3$645 USD
Retailer 5$681 USD
Retailer 12$681 USD
Retailer 14$707 USD
Retailer 7$786 USD
Retailer 15$813 USD
Retailer 8$816 USD
Retailer 2$825 USD
Retailer 9$841 USD
Retailer 6$893 USD
Retailer 11$968 USD
Retailer 10$1,581 USD
NZ Jewellers$2,136 USD

22 data points across 15 retailers

15 retailers$629 USD to $2,136 USD

A
Cheapest Retailer
-
$629 USD
Final sale: no returns
Retailer 2
-
$630 USD
View
Price last confirmed 14 days ago
A
Retailer 3
-
$645 USD
View
A
Retailer 4
-
$681 USD
View
A
Retailer 5
-
$681 USD
View
A
Retailer 6
-
$707 USD
View
B+
Retailer 7
-
$786 USD
View
B+
Retailer 8
-
$813 USD
View
B+
Retailer 9
-
$816 USD
£643 GBP
View
B+
Retailer 10
-
$825 USD
View
B+
Retailer 11
-
$841 USD
£662 GBP
View
B+
Retailer 12
-
$893 USD
View
B+
Retailer 13
-
$968 USD
€922 EUR
View
B
Retailer 14
-
$1,581 USD
£1,245 GBP
View
Most Expensive
B
NZ Jewellers
0bd4f918-9ca8-4b85-af13-a681bd8accd7 · Oct 30
$2,136 USD
View
14 more retailers have this diamond
Prices start from $629 USDSave up to $1,507 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
0.51ct Oval
$629 USD