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Oval|Natural|GIA

1.70ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7538644928

Certificate GIA 7538644928

Diamond specifications and retailer prices

From $9,501 NZD
As of November 5, 2026
Save $10,840 NZD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $20,341 NZD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7538644928. Listed at 15 retailers as of November 5, 2026, with prices from $9,501 to $20,341, a $10,840 spread on the same certified stone. NZ Jewellers lists it at $20,341. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7538644928
Dimensions9.62 × 6.87 × 3.92 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Knot, Needle
Top View
9.62 mm6.87 mm1.70 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7538644928
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 57.0%

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 5
Current: $20,341 NZD|Low: $9,609 NZD|High: $20,341 NZD|Avg: $13,067 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$9,609 NZD
Retailer 8$10,264 NZD
Retailer 7$11,018 NZD
Retailer 10$11,018 NZD
Retailer 4$11,550 NZD
Retailer 9$11,619 NZD
Retailer 2$12,515 NZD
Retailer 11$12,714 NZD
Retailer 5$14,839 NZD
Retailer 6$17,869 NZD
NZ Jewellers$20,341 NZD

45 data points across 11 retailers

15 retailers$9,501 NZD to $20,341 NZD

B+
Cheapest Retailer
-
$9,501 NZD
B+
Retailer 2
-
$9,609 NZD
View
B+
Retailer 3
-
$9,736 NZD
View
B+
Retailer 4
-
$10,255 NZD
View
B+
Retailer 5
-
$10,264 NZD
View
Retailer 6
-
$11,018 NZD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$11,018 NZD
View
B
Retailer 8
-
$11,018 NZD
View
B+
Retailer 9
-
$11,550 NZD
View
B+
Retailer 10
-
$11,619 NZD
View
B
Retailer 11
-
$12,515 NZD
View
B
Retailer 12
-
$12,714 NZD
View
B
Retailer 13
-
$14,839 NZD
View
B
Retailer 14
-
$17,869 NZD
View
Most Expensive
B
NZ Jewellers
fa1220ba-5911-4b21-8345-b46780fbcea1 · Nov 5
$20,341 NZD
$11,276 USD
View
14 more retailers have this diamond
Prices start from $9,501 NZDSave up to $10,840 NZD

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
$9,501 NZD