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Round|Natural|GIA

1.70ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6512642989

Certificate GIA 6512642989

Diamond specifications and retailer prices

From $11,235 USD
As of November 1, 2026
Save $9,518 USD (46%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $20,753 USD at NZ Jewellers · As of November 2, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512642989. Listed at 25 retailers as of November 1, 2026, with prices from $11,235 to $20,753, a $9,518 spread on the same certified stone. NZ Jewellers lists it at $20,753. 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
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6512642989
Dimensions7.71 × 7.68 × 4.66 mm
L/W Ratio1.00
Top View
7.71 mm7.68 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512642989
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.6%

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: $20,753 USD|Low: $11,235 USD|High: $20,753 USD|Avg: $14,266 USD
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 18
Retailer 19
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Retailer 24
Retailer 25
November 3, 2026
Retailer 22$11,235 USD
Retailer 12$11,366 USD
Retailer 9$11,552 USD
Retailer 25$11,733 USD
Retailer 8$11,908 USD
Retailer 6$12,038 USD
Retailer 24$12,255 USD
Retailer 5$12,452 USD
Retailer 13$13,191 USD
Retailer 23$13,282 USD
Retailer 14$13,290 USD
Retailer 21$13,364 USD
Retailer 3$13,430 USD
Retailer 10$13,489 USD
Retailer 18$14,008 USD
Retailer 4$14,330 USD
Retailer 15$14,330 USD
Retailer 16$14,425 USD
Retailer 17$14,810 USD
Retailer 2$14,968 USD
Retailer 11$15,211 USD
Retailer 7$15,520 USD
Retailer 20$18,293 USD
Retailer 19$19,446 USD
NZ Jewellers$20,753 USD

39 data points across 25 retailers

25 retailers$11,235 USD to $20,753 USD

B+
Cheapest Retailer
-
$11,235 USD
B+
Retailer 2
-
$11,366 USD
View
B+
Retailer 3
-
$11,552 USD
View
B+
Retailer 4
-
$11,733 USD
CA$16,296 CAD
View
B+
Retailer 5
-
$11,908 USD
View
B+
Retailer 6
-
$12,038 USD
View
Final sale: no returns
B
Retailer 7
-
$12,255 USD
View
B
Retailer 8
-
$12,452 USD
View
B+
Retailer 9
-
$13,191 USD
£10,386 GBP
View
B
Retailer 10
-
$13,282 USD
View
B
Retailer 11
-
$13,290 USD
View
Retailer 12
-
$13,364 USD
A$20,560 AUD
View
Price last confirmed 10 days ago
B
Retailer 13
-
$13,430 USD
View
B
Retailer 14
-
$13,489 USD
View
B
Retailer 15
-
$14,008 USD
View
B
Retailer 16
-
$14,330 USD
View
B
Retailer 17
-
$14,330 USD
View
B
Retailer 18
-
$14,425 USD
View
B
Retailer 19
-
$14,810 USD
View
B
Retailer 20
-
$14,968 USD
€14,255 EUR
View
Retailer 21
-
$15,211 USD
View
Price last confirmed 7 days ago
B
Retailer 22
-
$15,520 USD
View
B
Retailer 23
-
$18,293 USD
ZAR 295,527 ZAR
View
B
Retailer 24
-
$19,446 USD
£15,312 GBP
View
Most Expensive
B
NZ Jewellers
4d6e6f35-4d78-4bfd-996e-f4a7877ec56a · Nov 2
$20,753 USD
View
24 more retailers have this diamond
Prices start from $11,235 USDSave up to $9,518 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
$11,235 USD