Oval|Natural|GIA

1.70ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6551121667

Certificate GIA 6551121667

Diamond specifications and retailer prices

From $6,894 USD
As of October 30, 2026
Save $6,626 USD (49%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,551 USD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.7ct natural oval diamond

This 1.7ct natural oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551121667. Listed at 21 retailers as of October 29, 2026, with a 96% 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
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.2°
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6551121667
Dimensions9.30 × 6.73 × 4.25 mm
L/W Ratio1.38
Top View
9.30 mm6.73 mm1.70 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551121667
Side View
Table 61.0%Crown 39.2°Girdle: THN-THKPavilion 39°Culet: NoneDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $9,011 USD|Low: $6,894 USD|High: $13,957 USD|Avg: $9,241 USD|-4.0%
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
November 1, 2026
Retailer 12$6,894 USD
Retailer 4$7,181 USD
Retailer 9$7,388 USD
Retailer 6$7,556 USD
Retailer 3$7,711 USD
Retailer 16$8,030 USD
Retailer 7$8,070 USD
Retailer 2$8,914 USD
Retailer 1$9,011 USD
Retailer 14$9,210 USD
Retailer 17$9,210 USD
Retailer 15$9,520 USD
Retailer 8$9,649 USD
Retailer 11$9,984 USD
Retailer 5$10,401 USD
Retailer 10$11,856 USD
Retailer 13$13,520 USD

32 data points across 17 retailers

21 retailers$6,894 USD to $13,520 USD

A
Cheapest Retailer
-
$6,894 USD
A
Retailer 2
-
$7,181 USD
HK$56,100 HKD
View
A
Retailer 3
-
$7,556 USD
View
A
Retailer 4
-
$7,711 USD
View
A
Retailer 5
-
$8,030 USD
View
B+
Retailer 6
-
$8,070 USD
View
Final sale: no returns
Retailer 7
-
$8,276 USD
View
Price last confirmed 24 days ago
Retailer 8
-
$8,914 USD
A$13,714 AUD
View
Price last confirmed 8 days ago
Retailer 9
-
$8,965 USD
View
Price last confirmed 24 days ago
B+
Retailer 10
-
$9,011 USD
£7,095 GBP
View
Retailer 11
-
$9,103 USD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
$9,210 USD
View
B+
Retailer 13
-
$9,210 USD
View
B+
Retailer 14
-
$9,520 USD
View
B+
Retailer 15
-
$9,649 USD
View
B+
Retailer 16
-
$9,984 USD
€9,509 EUR
View
Retailer 17
-
$10,344 USD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
$10,401 USD
View
B+
Retailer 19
-
$11,856 USD
ZAR 191,527 ZAR
View
B
Retailer 20
-
$13,520 USD
£10,646 GBP
View
Most Expensive
NZ Jewellers
73429c46-2589-40e9-9eca-2df8c62893d5 · Sep 29
$16,551 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $6,894 USDSave up to $6,626 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.

A
1.70ct Oval
$6,894 USD