Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5231987014

Certificate GIA 5231987014

Diamond specifications and retailer prices

From $743 USD
Save $482 USD (39%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,312 USD at Cape Diamonds
View at Cape Diamonds

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 5231987014. Listed at 13 retailers, with a 65% 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
Crown angle38.36°
Pavilion angle38.49°
OriginNatural
Grading LabGIA
CertificateGIA 5231987014
Dimensions6.78 × 4.35 × 2.62 mm
L/W Ratio1.56
Culet sizeNone
Top View
6.78 mm4.35 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231987014
Side View
Table 60.0%Crown 38.36°Girdle: STK-THKPavilion 38.49°Culet: NoneDepth 60.1%

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 30
Current: $1,312 USD|Low: $743 USD|High: $1,312 USD|Avg: $1,012 USD
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 1, 2026
Retailer 9$743 USD
Retailer 3$808 USD
Retailer 11$826 USD
Retailer 8$838 USD
Retailer 5$862 USD
Retailer 2$932 USD
Retailer 4$1,066 USD
Retailer 7$1,109 USD
Retailer 10$1,210 USD
Retailer 6$1,225 USD
Cape Diamonds$1,312 USD

40 data points across 11 retailers

13 retailers$743 USD to $1,225 USD

A
Cheapest Retailer
-
$743 USD
A
Retailer 2
-
$776 USD
SGD 1,049 SGD
View
A
Retailer 3
-
$808 USD
SGD 1,092 SGD
View
A
Retailer 4
-
$826 USD
View
B+
Retailer 5
-
$838 USD
View
B+
Retailer 6
-
$862 USD
£679 GBP
View
B+
Retailer 7
-
$932 USD
View
B+
Retailer 8
-
$964 USD
View
B+
Retailer 9
-
$1,066 USD
€1,015 EUR
View
B+
Retailer 10
-
$1,132 USD
View
B
Retailer 11
-
$1,210 USD
View
B
Retailer 12
-
$1,225 USD
View
Most Expensive
B
Cape Diamonds
cert_5231987014 · Aug 7
$1,312 USD
ZAR 21,194 ZAR
View
Price last confirmed 55 days ago
12 more retailers have this diamond
Prices start from $743 USDSave up to $482 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
$743 USD