Round|Natural|GIA

0.65ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6552580188

Certificate GIA 6552580188

Diamond specifications and retailer prices

From $653 USD
HK$5,100 HKD
As of November 1, 2026
Save $2,109 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,778 USD at NZ Jewellers · As of September 11, 2026
View at NZ Jewellers

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552580188. Listed at 18 retailers as of October 30, 2026, with a 323% 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

0.65
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552580188
Dimensions5.53 × 5.50 × 3.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Crystal
Top View
5.53 mm5.50 mm0.65 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6552580188
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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: Nov 1
Current: $2,762 USD|Low: $653 USD|High: $2,788 USD|Avg: $1,069 USD|-0.9%
NZ Jewellers
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
Retailer 16
November 1, 2026
Retailer 6$653 USD
Retailer 9$657 USD
Retailer 12$683 USD
Retailer 3$809 USD
Retailer 13$813 USD
Retailer 11$818 USD
Retailer 16$881 USD
Retailer 15$915 USD
Retailer 7$921 USD
Retailer 4$1,023 USD
Retailer 5$1,035 USD
Retailer 2$1,138 USD
Retailer 14$1,206 USD
Retailer 8$1,350 USD
Retailer 10$1,613 USD
NZ Jewellers$2,762 USD

30 data points across 16 retailers

18 retailers$653 USD to $2,762 USD

A
Cheapest Retailer
-
$653 USD
HK$5,100 HKD
A
Retailer 2
-
$657 USD
₹62,580 INR
View
A
Retailer 3
-
$683 USD
View
Final sale: no returns
A
Retailer 4
-
$809 USD
A$1,245 AUD
View
A
Retailer 5
-
$813 USD
View
A
Retailer 6
-
$818 USD
€779 EUR
View
A
Retailer 7
-
$881 USD
View
Retailer 8
-
$886 USD
View
Price last confirmed 52 days ago
A
Retailer 9
-
$915 USD
View
A
Retailer 10
-
$921 USD
SGD 1,245 SGD
View
B+
Retailer 11
-
$1,023 USD
View
B+
Retailer 12
-
$1,035 USD
View
B+
Retailer 13
-
$1,138 USD
€1,084 EUR
View
B+
Retailer 14
-
$1,206 USD
View
Retailer 15
-
$1,350 USD
A$2,076 AUD
View
Price last confirmed 29 days ago
B
Retailer 16
-
$1,613 USD
£1,270 GBP
View
B
Retailer 17
-
$2,762 USD
View
Most Expensive
NZ Jewellers
e8286dc9-425c-4c08-b5d3-007cf7aabede · Sep 11
$2,778 USD
View
Price last confirmed 51 days ago
17 more retailers have this diamond
Prices start from $653 USDSave up to $2,109 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
0.65ct Round
$653 USD