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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 $7,666 AUD
As of November 5, 2026
Save $8,745 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $16,411 AUD 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 $7,666 to $16,411, a $8,745 spread on the same certified stone. NZ Jewellers lists it at $16,411. 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: $16,411 AUD|Low: $7,753 AUD|High: $16,411 AUD|Avg: $10,542 AUD
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$7,753 AUD
Retailer 8$8,281 AUD
Retailer 7$8,890 AUD
Retailer 10$8,890 AUD
Retailer 4$9,319 AUD
Retailer 9$9,374 AUD
Retailer 2$10,098 AUD
Retailer 11$10,258 AUD
Retailer 5$11,972 AUD
Retailer 6$14,417 AUD
NZ Jewellers$16,411 AUD

45 data points across 11 retailers

15 retailers$7,666 AUD to $16,411 AUD

B+
Cheapest Retailer
-
$7,666 AUD
B+
Retailer 2
-
$7,753 AUD
View
B+
Retailer 3
-
$7,855 AUD
View
B+
Retailer 4
-
$8,274 AUD
View
B+
Retailer 5
-
$8,281 AUD
View
Retailer 6
-
$8,890 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$8,890 AUD
View
B
Retailer 8
-
$8,890 AUD
View
B+
Retailer 9
-
$9,319 AUD
View
B+
Retailer 10
-
$9,374 AUD
View
B
Retailer 11
-
$10,098 AUD
View
B
Retailer 12
-
$10,258 AUD
View
B
Retailer 13
-
$11,972 AUD
View
B
Retailer 14
-
$14,417 AUD
View
Most Expensive
B
NZ Jewellers
fa1220ba-5911-4b21-8345-b46780fbcea1 · Nov 5
$16,411 AUD
$11,276 USD
View
14 more retailers have this diamond
Prices start from $7,666 AUDSave up to $8,745 AUD

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
$7,666 AUD