CaratHunter
Plans
Oval|Natural|GIA

0.51ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 2566083504

Certificate GIA 2566083504

Diamond specifications and retailer prices

From $598 USD
Save $1,620 USD (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,218 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 2566083504. Listed at 14 retailers, with prices from $598 to $2,218 at NZ Jewellers, a $1,620 spread on the same certified stone. 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
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566083504
Dimensions6.62 × 4.38 × 2.73 mm
L/W Ratio1.51
Girdle conditionFaceted
Key to symbols
Cloud
Top View
6.62 mm4.38 mm0.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566083504
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $987 USD|Low: $598 USD|High: $1,651 USD|Avg: $888 USD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 10$598 USD
Retailer 9$669 USD
Retailer 7$707 USD
Retailer 5$835 USD
Retailer 8$885 USD
Retailer 2$970 USD
Retailer 1$987 USD
Retailer 3$1,059 USD
Retailer 4$1,074 USD
Retailer 6$1,651 USD

25 data points across 10 retailers

14 retailers$598 USD to $2,218 USD

B+
Cheapest Retailer
-
$598 USD
B+
Retailer 2
-
$669 USD
View
B+
Retailer 3
-
$707 USD
View
B+
Retailer 4
-
$707 USD
View
B+
Retailer 5
-
$735 USD
View
B+
Retailer 6
-
$816 USD
View
B+
Retailer 7
-
$837 USD
£659 GBP
View
B
Retailer 8
-
$885 USD
View
B
Retailer 9
-
$970 USD
View
B
Retailer 10
-
$987 USD
€940 EUR
View
B
Retailer 11
-
$1,059 USD
A$1,630 AUD
View
B
Retailer 12
-
$1,074 USD
ZAR 17,354 ZAR
View
C
Retailer 13
-
$1,651 USD
£1,300 GBP
View
Most Expensive
C
NZ Jewellers
47c18c4b-bbe2-4c0c-9c19-888639223cb0 · Sep 29
$2,218 USD
View
13 more retailers have this diamond
Prices start from $598 USDSave up to $1,620 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.

B+
0.51ct Oval
$598 USD