Round|Natural|GIA

0.51ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2407006099

Certificate GIA 2407006099

Diamond specifications and retailer prices

From $704 USD
₹67,058 INR
As of October 31, 2026
Save $1,528 USD (68%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,042 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 2407006099. Listed at 23 retailers as of October 31, 2026, with a 217% 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2407006099
Dimensions5.22 × 5.18 × 3.14 mm
L/W Ratio1.01
Top View
5.22 mm5.18 mm0.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2407006099
Side View
Table 59.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.3%

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 31
Current: $1,777 USD|Low: $702 USD|High: $1,796 USD|Avg: $1,133 USD|-1.1%
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
November 1, 2026
Retailer 8$704 USD
Retailer 9$717 USD
Retailer 2$895 USD
Retailer 12$945 USD
Retailer 3$950 USD
Retailer 5$1,008 USD
Retailer 7$1,015 USD
Retailer 13$1,120 USD
Retailer 6$1,121 USD
Retailer 11$1,224 USD
Retailer 4$1,459 USD
Retailer 10$1,498 USD
Retailer 1$1,777 USD

34 data points across 13 retailers

23 retailers$704 USD to $2,232 USD

A
Cheapest Retailer
-
$704 USD
₹67,058 INR
A
Retailer 2
-
$717 USD
HK$5,600 HKD
View
B+
Retailer 3
-
$895 USD
View
Final sale: no returns
B+
Retailer 4
-
$945 USD
View
B+
Retailer 5
-
$950 USD
View
B+
Retailer 6
-
$970 USD
View
B+
Retailer 7
-
$970 USD
View
B+
Retailer 8
-
$991 USD
SGD 1,339 SGD
View
B+
Retailer 9
-
$1,008 USD
View
B+
Retailer 10
-
$1,015 USD
View
B+
Retailer 11
-
$1,104 USD
View
B+
Retailer 12
-
$1,119 USD
View
B+
Retailer 13
-
$1,120 USD
View
B+
Retailer 14
-
$1,121 USD
£883 GBP
View
B+
Retailer 15
-
$1,175 USD
A$1,808 AUD
View
B+
Retailer 16
-
$1,224 USD
€1,166 EUR
View
B+
Retailer 17
-
$1,266 USD
View
B
Retailer 18
-
$1,351 USD
View
Retailer 19
-
$1,459 USD
A$2,244 AUD
View
Price last confirmed 27 days ago
B
Retailer 20
-
$1,498 USD
ZAR 24,194 ZAR
View
B
Retailer 21
-
$1,777 USD
£1,399 GBP
View
B
Retailer 22
-
$2,232 USD
£1,757 GBP
View
Most Expensive
NZ Jewellers
14d9a984-1a28-47c7-adb8-407b0354cc33 · Oct 30
$3,042 USD
View
Price under review
22 more retailers have this diamond
Prices start from $704 USDSave up to $1,528 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 Round
$704 USD