Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6555649011

Certificate GIA 6555649011

Diamond specifications and retailer prices

From €5,359 EUR
$5,987 USD
As of November 1, 2026
Save €4,159 EUR (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €10,509 EUR at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555649011. Listed at 14 retailers as of October 26, 2026, with a 78% 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

1.60
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6555649011
Dimensions7.44 × 7.40 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.44 mm7.40 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555649011
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: €6,754 EUR|Low: €4,530 EUR|High: €14,888 EUR|Avg: €6,018 EUR|+1.7%
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
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 2€4,530 EUR
Retailer 4€4,537 EUR
Retailer 3€4,777 EUR
Retailer 5€4,939 EUR
Retailer 9€5,095 EUR
Retailer 6€5,294 EUR
Retailer 18€5,359 EUR
Retailer 7€5,469 EUR
Retailer 14€5,495 EUR
Retailer 15€5,625 EUR
Retailer 10€5,794 EUR
Retailer 13€6,057 EUR
Retailer 11€6,148 EUR
Retailer 16€6,274 EUR
Retailer 1€6,754 EUR
Retailer 8€7,080 EUR
Retailer 12€9,109 EUR
Retailer 17€9,518 EUR

28 data points across 18 retailers

14 retailers€5,359 EUR to €9,518 EUR

Retailer 1
-
€4,537 EUR
HK$39,600 HKD
Price last confirmed 40 days ago
Retailer 2
-
€4,939 EUR
View
Price last confirmed 40 days ago
B+
Retailer 3
-
€5,359 EUR
$5,987 USD
View
Retailer 4
-
€5,469 EUR
$6,110 USD
View
Price last confirmed 40 days ago
B+
Retailer 5
-
€5,495 EUR
CA$8,526 CAD
View
B+
Retailer 6
-
€5,625 EUR
$6,284 USD
View
B+
Retailer 7
-
€5,794 EUR
A$9,958 AUD
View
B+
Retailer 8
-
€6,057 EUR
$6,767 USD
View
B+
Retailer 9
-
€6,148 EUR
£5,408 GBP
View
B+
Retailer 10
-
€6,274 EUR
$7,009 USD
View
B+
Retailer 11
-
€6,754 EUR
View
B
Retailer 12
-
€9,109 EUR
£8,013 GBP
View
B
Retailer 13
-
€9,518 EUR
$10,634 USD
View
Most Expensive
NZ Jewellers
809800c8-ddf7-4a6e-b10a-11a7a278cb73 · Sep 19
€10,509 EUR
$11,741 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from €5,359 EURSave up to €4,159 EUR

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+
1.60ct Round
€5,359 EUR