Oval|Natural|GIA

1.70ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 2538257850

Certificate GIA 2538257850

Diamond specifications and retailer prices

From $12,194 USD
As of October 30, 2026
17 retailers carry this diamond
Most expensive: $18,280 USD at NZ Jewellers · As of October 17, 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 2538257850. Listed at 17 retailers as of October 30, 2026. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2538257850
Dimensions9.69 × 6.46 × 4.06 mm
L/W Ratio1.50
Top View
9.69 mm6.46 mm1.70 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2538257850
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $18,280 USD|Low: $10,086 USD|High: $18,280 USD|Avg: $13,258 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
Retailer 18
Retailer 19
October 23, 2026
Retailer 2$10,086 USD
Retailer 6$10,968 USD
Retailer 8$10,968 USD
Retailer 18$11,155 USD
Retailer 9$11,703 USD
Retailer 5$11,882 USD
Retailer 12$12,009 USD
Retailer 17$12,065 USD
Retailer 10$12,078 USD
Retailer 11$12,194 USD
Retailer 4$12,850 USD
Retailer 19$12,850 USD
Retailer 3$13,280 USD
Retailer 7$13,710 USD
Retailer 15$13,717 USD
Retailer 13$15,802 USD
Retailer 14$16,288 USD
Retailer 16$17,221 USD
NZ Jewellers$18,280 USD

36 data points across 19 retailers

17 retailers

Retailer 1
-
$10,086 USD
Price last confirmed 8 days ago
Retailer 2
-
$10,968 USD
View
Price last confirmed 16 days ago
Retailer 3
-
$11,155 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$11,703 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$11,882 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$12,009 USD
£9,456 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$12,065 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$12,078 USD
A$18,581 AUD
View
Price last confirmed 28 days ago
B+
Retailer 9
-
$12,194 USD
View
Retailer 10
-
$12,850 USD
View
Price last confirmed 10 days ago
Retailer 11
-
$12,850 USD
View
Price last confirmed 9 days ago
Retailer 12
-
$13,280 USD
View
Price last confirmed 13 days ago
Retailer 13
-
$13,710 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$15,802 USD
ZAR 255,282 ZAR
View
Price last confirmed 9 days ago
Retailer 15
-
$16,288 USD
£12,825 GBP
View
Price last confirmed 8 days ago
Retailer 16
-
$17,221 USD
£13,560 GBP
View
Price last confirmed 13 days ago
Most Expensive
NZ Jewellers
00b6971b-e480-456e-831e-00e12ebad02b · Oct 17
$18,280 USD
View
Price last confirmed 14 days ago
16 more retailers have this diamond
Prices start from $12,194 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
$12,194 USD