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0.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2416308574

Certificate GIA 2416308574

Diamond specifications and retailer prices

From $953 USD
As of October 31, 2026
Save $1,825 USD (66%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,778 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2416308574. Listed at 21 retailers as of October 30, 2026, with prices from $953 to $2,778, a $1,825 spread on the same certified stone. NZ Jewellers lists it at $2,778. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2416308574
Dimensions5.13 × 5.10 × 3.20 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.13 mm5.10 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2416308574
Side View
Table 56.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $2,087 USD|Low: $794 USD|High: $2,112 USD|Avg: $1,339 USD|-0.1%
Retailer 1
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
November 1, 2026
Retailer 11$953 USD
Retailer 4$993 USD
Retailer 14$1,013 USD
Retailer 13$1,072 USD
Retailer 10$1,175 USD
Retailer 6$1,191 USD
Retailer 5$1,250 USD
Retailer 3$1,285 USD
Retailer 7$1,292 USD
Retailer 9$1,478 USD
Retailer 12$1,489 USD
Retailer 8$1,758 USD
Retailer 2$1,851 USD
Retailer 1$2,087 USD

43 data points across 14 retailers

21 retailers$953 USD to $2,778 USD

B+
Cheapest Retailer
-
$953 USD
Final sale: no returns
B+
Retailer 2
-
$993 USD
View
Retailer 3
-
$1,005 USD
View
Price last confirmed 77 days ago
B+
Retailer 4
-
$1,009 USD
View
B+
Retailer 5
-
$1,013 USD
View
B+
Retailer 6
-
$1,032 USD
View
B+
Retailer 7
-
$1,072 USD
View
B+
Retailer 8
-
$1,175 USD
View
B+
Retailer 9
-
$1,191 USD
View
B+
Retailer 10
-
$1,250 USD
View
B+
Retailer 11
-
$1,250 USD
View
B+
Retailer 12
-
$1,285 USD
View
B
Retailer 13
-
$1,290 USD
View
B+
Retailer 14
-
$1,292 USD
£1,017 GBP
View
B
Retailer 15
-
$1,478 USD
€1,408 EUR
View
Retailer 16
-
$1,489 USD
A$2,291 AUD
View
Price last confirmed 28 days ago
B
Retailer 17
-
$1,758 USD
ZAR 28,405 ZAR
View
B
Retailer 18
-
$1,851 USD
CA$2,570 CAD
View
B
Retailer 19
-
$2,087 USD
£1,643 GBP
View
B
Retailer 20
-
$2,093 USD
£1,648 GBP
View
Most Expensive
B
NZ Jewellers
2aa3a95a-b3b7-4812-a5cc-6ae810084756 · Oct 30
$2,778 USD
View
20 more retailers have this diamond
Prices start from $953 USDSave up to $1,825 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.

B+
0.51ct Round
$953 USD