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1.65ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2537455966

Certificate GIA 2537455966

Diamond specifications and retailer prices

From $8,653 USD
HK$67,600 HKD
As of November 1, 2026
Save $7,829 USD (48%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $16,482 USD 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 $8,653 to $16,482, a $7,829 spread on the same certified stone. NZ Jewellers lists it at $16,482. 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: $16,482 USD|Low: $8,653 USD|High: $16,869 USD|Avg: $11,890 USD
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$8,653 USD
Retailer 3$9,176 USD
Retailer 8$9,217 USD
Retailer 18$9,785 USD
Retailer 11$9,889 USD
Retailer 4$10,714 USD
Retailer 13$10,755 USD
Retailer 17$10,878 USD
Retailer 16$10,887 USD
Retailer 12$11,465 USD
Retailer 10$11,600 USD
Retailer 19$11,600 USD
Retailer 5$11,980 USD
Retailer 6$12,362 USD
Retailer 2$12,947 USD
Retailer 9$13,012 USD
Retailer 15$14,529 USD
Retailer 14$15,444 USD
NZ Jewellers$16,482 USD

36 data points across 19 retailers

19 retailers$8,653 USD to $16,482 USD

B+
Cheapest Retailer
-
$8,653 USD
HK$67,600 HKD
B+
Retailer 2
-
$9,176 USD
View
B+
Retailer 3
-
$9,217 USD
View
Final sale: no returns
B+
Retailer 4
-
$9,785 USD
View
B+
Retailer 5
-
$9,889 USD
View
B+
Retailer 6
-
$10,714 USD
View
B+
Retailer 7
-
$10,755 USD
£8,468 GBP
View
B+
Retailer 8
-
$10,878 USD
View
Retailer 9
-
$10,887 USD
A$16,750 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$11,465 USD
€10,919 EUR
View
B
Retailer 11
-
$11,600 USD
View
B
Retailer 12
-
$11,600 USD
View
B
Retailer 13
-
$11,980 USD
View
B
Retailer 14
-
$12,362 USD
View
B
Retailer 15
-
$12,947 USD
£10,195 GBP
View
Retailer 16
-
$13,012 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$14,529 USD
ZAR 234,711 ZAR
View
B
Retailer 18
-
$15,444 USD
£12,161 GBP
View
Most Expensive
B
NZ Jewellers
fa12e94d-5aed-4303-9acf-e75c560b62d1 · Nov 2
$16,482 USD
View
18 more retailers have this diamond
Prices start from $8,653 USDSave up to $7,829 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.

B+
1.65ct Round
$8,653 USD