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Round|Natural|GIA

1.65ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2537455966

Certificate GIA 2537455966

Diamond specifications and retailer prices

From €7,715 EUR
HK$67,600 HKD
As of November 1, 2026
Save €6,980 EUR (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €14,695 EUR at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.65ct natural round diamond

This 1.65ct natural round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2537455966. Listed at 19 retailers as of November 1, 2026, with prices from €7,715 to €14,695, a €6,980 spread on the same certified stone. NZ Jewellers lists it at €14,695. 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

1.65
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2537455966
Dimensions7.47 × 7.54 × 4.66 mm
L/W Ratio1.01
Top View
7.47 mm7.54 mm1.65 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537455966
Side View
Table 59.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.1%

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: €14,695 EUR|Low: €7,715 EUR|High: €15,040 EUR|Avg: €10,601 EUR
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
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 7€7,715 EUR
Retailer 3€8,181 EUR
Retailer 8€8,218 EUR
Retailer 18€8,724 EUR
Retailer 11€8,817 EUR
Retailer 4€9,552 EUR
Retailer 13€9,589 EUR
Retailer 17€9,699 EUR
Retailer 16€9,707 EUR
Retailer 12€10,222 EUR
Retailer 10€10,342 EUR
Retailer 19€10,342 EUR
Retailer 5€10,681 EUR
Retailer 6€11,022 EUR
Retailer 2€11,544 EUR
Retailer 9€11,601 EUR
Retailer 15€12,953 EUR
Retailer 14€13,770 EUR
NZ Jewellers€14,695 EUR

36 data points across 19 retailers

19 retailers€7,715 EUR to €14,695 EUR

B+
Cheapest Retailer
-
€7,715 EUR
HK$67,600 HKD
B+
Retailer 2
-
€8,181 EUR
$9,176 USD
View
B+
Retailer 3
-
€8,218 EUR
$9,217 USD
View
Final sale: no returns
B+
Retailer 4
-
€8,724 EUR
$9,785 USD
View
B+
Retailer 5
-
€8,817 EUR
$9,889 USD
View
B+
Retailer 6
-
€9,552 EUR
$10,714 USD
View
B+
Retailer 7
-
€9,589 EUR
£8,468 GBP
View
B+
Retailer 8
-
€9,699 EUR
$10,878 USD
View
Retailer 9
-
€9,707 EUR
A$16,750 AUD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
€10,222 EUR
View
B
Retailer 11
-
€10,342 EUR
$11,600 USD
View
B
Retailer 12
-
€10,342 EUR
$11,600 USD
View
B
Retailer 13
-
€10,681 EUR
$11,980 USD
View
B
Retailer 14
-
€11,022 EUR
$12,362 USD
View
B
Retailer 15
-
€11,544 EUR
£10,195 GBP
View
Retailer 16
-
€11,601 EUR
$13,012 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
€12,953 EUR
ZAR 234,711 ZAR
View
B
Retailer 18
-
€13,770 EUR
£12,161 GBP
View
Most Expensive
B
NZ Jewellers
fa12e94d-5aed-4303-9acf-e75c560b62d1 · Nov 2
€14,695 EUR
$16,482 USD
View
18 more retailers have this diamond
Prices start from €7,715 EURSave up to €6,980 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+
1.65ct Round
€7,715 EUR