Round|Natural|GIA

1.70ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6545357664

Certificate GIA 6545357664

Diamond specifications and retailer prices

From $6,797 USD
As of October 30, 2026
Save $7,720 USD (53%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $14,517 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545357664. Listed at 25 retailers as of October 30, 2026, with a 114% 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

1.70
Carat
H
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6545357664
Dimensions7.62 × 7.57 × 4.74 mm
L/W Ratio1.01
Top View
7.62 mm7.57 mm1.70 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545357664
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.4%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $10,514 USD|Low: $6,653 USD|High: $12,789 USD|Avg: $9,665 USD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 8$6,797 USD
Retailer 7$7,258 USD
Retailer 6$7,259 USD
Retailer 2$8,032 USD
Retailer 3$9,509 USD
Retailer 1$10,514 USD
Retailer 4$12,162 USD
Retailer 5$12,732 USD

40 data points across 8 retailers

25 retailers$6,797 USD to $14,517 USD

B+
Cheapest Retailer
-
$6,797 USD
B+
Retailer 2
-
$7,258 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,259 USD
View
B+
Retailer 4
-
$7,732 USD
View
Retailer 5
-
$7,864 USD
View
Price last confirmed 23 days ago
Retailer 6
-
$7,864 USD
View
Price last confirmed 43 days ago
Retailer 7
-
$7,864 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$7,985 USD
View
Price last confirmed 31 days ago
B+
Retailer 9
-
$8,032 USD
£6,325 GBP
View
B
Retailer 10
-
$8,340 USD
View
B
Retailer 11
-
$8,340 USD
View
B+
Retailer 12
-
$8,610 USD
View
Retailer 13
-
$9,073 USD
View
Price last confirmed 22 days ago
Retailer 14
-
$9,073 USD
View
Price last confirmed 39 days ago
Retailer 15
-
$9,073 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$9,073 USD
View
B
Retailer 17
-
$9,509 USD
€9,056 EUR
View
Retailer 18
-
$9,560 USD
View
Price last confirmed 16 days ago
B
Retailer 19
-
$10,514 USD
£8,279 GBP
View
B
Retailer 20
-
$12,162 USD
£9,576 GBP
View
B
Retailer 21
-
$12,732 USD
£10,025 GBP
View
Retailer 22
-
$14,517 USD
View
Price last confirmed 41 days ago
B
Retailer 23
-
$14,517 USD
View
Retailer 24
-
$14,517 USD
View
Price last confirmed 34 days ago
Most Expensive
NZ Jewellers
9dce53ff-da98-468c-a682-945f5f03bd09 · Oct 20
$14,517 USD
View
Price last confirmed 10 days ago
24 more retailers have this diamond
Prices start from $6,797 USDSave up to $7,720 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+
1.70ct Round
$6,797 USD