Round|Natural|GIA

0.63ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 2554958968

Certificate GIA 2554958968

Diamond specifications and retailer prices

From $666 USD
HK$5,200 HKD
As of October 29, 2026
Save $969 USD (59%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,902 USD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 0.63ct natural round diamond

This 0.63ct 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 2554958968. Listed at 24 retailers as of October 29, 2026, with a 146% 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

0.63
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554958968
Dimensions5.50 × 5.52 × 3.38 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Cloud, Feather
Top View
5.50 mm5.52 mm0.63 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554958968
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: $1,029 USD|Low: $666 USD|High: $1,634 USD|Avg: $1,001 USD|+0.6%
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
Retailer 15
October 29, 2026
Retailer 5$666 USD
Retailer 8$678 USD
Retailer 11$818 USD
Retailer 6$829 USD
Retailer 4$890 USD
Retailer 3$910 USD
Retailer 7$937 USD
Retailer 2$1,012 USD
Retailer 1$1,029 USD
Retailer 9$1,045 USD
Retailer 12$1,054 USD
Retailer 13$1,173 USD
Retailer 14$1,175 USD
Retailer 15$1,310 USD
Retailer 10$1,634 USD

22 data points across 15 retailers

24 retailers$666 USD to $1,634 USD

A
Cheapest Retailer
-
$666 USD
HK$5,200 HKD
A
Retailer 2
-
$678 USD
₹64,576 INR
View
A
Retailer 3
-
$818 USD
View
Final sale: no returns
A
Retailer 4
-
$829 USD
A$1,275 AUD
View
A
Retailer 5
-
$890 USD
View
A
Retailer 6
-
$910 USD
View
Price last confirmed 48 days ago
A
Retailer 7
-
$910 USD
View
A
Retailer 8
-
$925 USD
View
Price last confirmed 25 days ago
A
Retailer 9
-
$937 USD
SGD 1,266 SGD
View
A
Retailer 10
-
$970 USD
View
Price last confirmed 30 days ago
A
Retailer 11
-
$1,012 USD
View
A
Retailer 12
-
$1,029 USD
£810 GBP
View
A
Retailer 13
-
$1,045 USD
View
B+
Retailer 14
-
$1,050 USD
View
Price last confirmed 48 days ago
A
Retailer 15
-
$1,054 USD
£830 GBP
View
A
Retailer 16
-
$1,068 USD
View
Price last confirmed 27 days ago
B+
Retailer 17
-
$1,173 USD
€1,117 EUR
View
B+
Retailer 18
-
$1,175 USD
View
B+
Retailer 19
-
$1,195 USD
A$1,838 AUD
View
B+
Retailer 20
-
$1,310 USD
ZAR 21,158 ZAR
View
B+
Retailer 21
-
$1,392 USD
A$2,141 AUD
View
Price last confirmed 24 days ago
B+
Retailer 22
-
$1,634 USD
£1,287 GBP
View
B
Retailer 23
-
$2,853 USD
View
Price last confirmed 48 days ago
Most Expensive
B
NZ Jewellers
c296e0d8-b864-4aa7-b7ee-6c4a48b9c8ae · Oct 3
$2,902 USD
View
Price last confirmed 26 days ago
23 more retailers have this diamond
Prices start from $666 USDSave up to $969 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
0.63ct Round
$666 USD