Oval|Natural|GIA

1.70ct E SI1 Oval Natural Diamond

ID • E/SI1 • GIA 1565321793

Certificate GIA 1565321793

Diamond specifications and retailer prices

From $9,040 USD
As of October 26, 2026
Save $3,170 USD (26%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,707 USD at NZ Jewellers · As of September 30, 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 1565321793. Listed at 20 retailers as of October 26, 2026, with a 35% 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle40.65°
Pavilion angle34.01°
OriginNatural
Grading LabGIA
CertificateGIA 1565321793
Dimensions9.33 × 6.49 × 4.03 mm
L/W Ratio1.44
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Pinpoint
Top View
9.33 mm6.49 mm1.70 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1565321793
Side View
Table 62.0%Crown 40.65°Girdle: THK-VTKPavilion 34.01°Culet: NoneDepth 62.2%

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 26
Current: $10,604 USD|Low: $8,514 USD|High: $14,896 USD|Avg: $10,699 USD|+0.9%
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
Retailer 18
October 27, 2026
Retailer 5$9,002 USD
Retailer 12$9,040 USD
Retailer 18$9,335 USD
Retailer 3$9,424 USD
Retailer 9$9,545 USD
Retailer 13$9,824 USD
Retailer 10$9,910 USD
Retailer 15$10,020 USD
Retailer 7$10,050 USD
Retailer 14$10,367 USD
Retailer 8$10,403 USD
Retailer 1$10,604 USD
Retailer 6$10,806 USD
Retailer 2$11,750 USD
Retailer 4$11,853 USD
Retailer 11$12,210 USD
Retailer 17$13,679 USD
Retailer 16$14,798 USD

27 data points across 18 retailers

20 retailers$9,040 USD to $12,210 USD

Retailer 1
-
$9,002 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
$9,040 USD
View
Retailer 3
-
$9,335 USD
View
Price last confirmed 5 days ago
Retailer 4
-
$9,545 USD
SGD 12,899 SGD
View
Price last confirmed 31 days ago
B+
Retailer 5
-
$9,824 USD
View
Retailer 6
-
$9,910 USD
View
Price last confirmed 33 days ago
Retailer 7
-
$10,020 USD
SGD 13,541 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$10,050 USD
View
Retailer 9
-
$10,367 USD
A$15,949 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$10,604 USD
£8,350 GBP
View
Retailer 11
-
$10,806 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$11,270 USD
View
Price last confirmed 30 days ago
Retailer 13
-
$11,443 USD
View
Price last confirmed 32 days ago
B+
Retailer 14
-
$11,750 USD
View
Retailer 15
-
$11,853 USD
View
Price last confirmed 8 days ago
B+
Retailer 16
-
$12,210 USD
€11,629 EUR
View
Retailer 17
-
$13,003 USD
View
Price last confirmed 33 days ago
Retailer 18
-
$13,679 USD
ZAR 220,991 ZAR
View
Price last confirmed 14 days ago
Retailer 19
-
$14,798 USD
£11,652 GBP
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
a4314360-ec78-401d-a406-beeef991b8a7 · Sep 30
$15,707 USD
View
Price last confirmed 31 days ago
19 more retailers have this diamond
Prices start from $9,040 USDSave up to $3,170 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 Oval
$9,040 USD