Oval|Natural|GIA

1.70ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 6542617143

Certificate GIA 6542617143

Diamond specifications and retailer prices

From $10,090 USD
As of October 30, 2026
Save $8,035 USD (44%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $18,125 USD at NZ Jewellers · As of October 14, 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 6542617143. Listed at 21 retailers as of October 30, 2026, with a 80% 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
FluorescenceNone
Crown angle39.6°
Pavilion angle35.9°
OriginNatural
Grading LabGIA
CertificateGIA 6542617143
Dimensions9.22 × 6.53 × 4.11 mm
L/W Ratio1.41
Top View
9.22 mm6.53 mm1.70 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542617143
Side View
Table 61.0%Crown 39.6°Girdle: STK-THKPavilion 35.9°Culet: NoneDepth 62.9%

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: Oct 30
Current: $18,125 USD|Low: $9,910 USD|High: $18,125 USD|Avg: $12,605 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
November 1, 2026
Retailer 5$9,910 USD
Retailer 6$10,090 USD
Retailer 8$10,154 USD
Retailer 14$10,875 USD
Retailer 7$10,966 USD
Retailer 9$11,603 USD
Retailer 11$11,756 USD
Retailer 16$11,781 USD
Retailer 3$11,820 USD
Retailer 15$11,963 USD
Retailer 4$12,024 USD
Retailer 10$12,168 USD
Retailer 17$13,594 USD
Retailer 13$13,703 USD
Retailer 12$15,977 USD
Retailer 2$16,984 USD
NZ Jewellers$18,125 USD

24 data points across 17 retailers

21 retailers$10,090 USD to $18,125 USD

Retailer 1
-
$9,910 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
$10,090 USD
View
B+
Retailer 3
-
$10,154 USD
View
B+
Retailer 4
-
$10,875 USD
View
Retailer 5
-
$10,875 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$10,966 USD
View
B+
Retailer 7
-
$11,603 USD
View
B+
Retailer 8
-
$11,756 USD
£9,257 GBP
View
B+
Retailer 9
-
$11,781 USD
View
Retailer 10
-
$11,781 USD
View
Price last confirmed 18 days ago
Retailer 11
-
$11,820 USD
A$18,185 AUD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
$11,963 USD
View
B+
Retailer 13
-
$12,024 USD
View
B+
Retailer 14
-
$12,168 USD
£9,581 GBP
View
Retailer 15
-
$12,681 USD
View
Price last confirmed 61 days ago
B+
Retailer 16
-
$13,594 USD
View
B
Retailer 17
-
$13,703 USD
€13,050 EUR
View
B
Retailer 18
-
$15,977 USD
ZAR 258,107 ZAR
View
B
Retailer 19
-
$16,984 USD
£13,373 GBP
View
B
Retailer 20
-
$18,125 USD
View
Most Expensive
NZ Jewellers
52e560a5-c803-425f-be8b-61bc7290fa5c · Oct 14
$18,125 USD
View
Price last confirmed 18 days ago
20 more retailers have this diamond
Prices start from $10,090 USDSave up to $8,035 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
$10,090 USD