Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 1538535517

Certificate GIA 1538535517

Diamond specifications and retailer prices

From $12,464 NZD
£5,531 GBP
As of November 1, 2026
Save $11,521 NZD (48%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $23,985 NZD at NZ Jewellers · As of October 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 D 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 1538535517. Listed at 9 retailers as of October 30, 2026, with prices from $12,464 to $23,985, a $11,521 spread on the same certified stone. NZ Jewellers lists it at $23,985. 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
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle40.42°
Pavilion angle39.44°
OriginNatural
Grading LabGIA
CertificateGIA 1538535517
Dimensions8.90 × 6.46 × 4.31 mm
L/W Ratio1.38
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Knot, Needle
Top View
8.90 mm6.46 mm1.70 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1538535517
Side View
Table 58.0%Crown 40.42°Girdle: THK-VTKPavilion 39.44°Culet: NoneDepth 66.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $23,985 NZD|Low: $12,426 NZD|High: $24,407 NZD|Avg: $15,851 NZD|-1.7%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 3$12,464 NZD
Retailer 5$13,458 NZD
Retailer 10$13,573 NZD
Retailer 9$13,989 NZD
Retailer 8$14,340 NZD
Retailer 7$14,411 NZD
Retailer 6$14,562 NZD
Retailer 4$16,237 NZD
Retailer 2$19,985 NZD
NZ Jewellers$23,985 NZD

34 data points across 10 retailers

9 retailers$12,464 NZD to $23,985 NZD

A
Cheapest Retailer
-
$12,464 NZD
£5,531 GBP
A
Retailer 2
-
$13,458 NZD
£5,972 GBP
View
A
Retailer 3
-
$13,573 NZD
$7,650 USD
View
Retailer 4
-
$13,989 NZD
A$12,130 AUD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$14,340 NZD
$8,082 USD
View
A
Retailer 6
-
$14,411 NZD
$8,122 USD
View
A
Retailer 7
-
$14,562 NZD
$8,207 USD
View
B+
Retailer 8
-
$19,985 NZD
£8,869 GBP
View
Most Expensive
B
NZ Jewellers
8b26ef5a-896d-45aa-a41b-d51ecc5b6cf8 · Oct 30
$23,985 NZD
$13,518 USD
View
8 more retailers have this diamond
Prices start from $12,464 NZDSave up to $11,521 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.

A
1.70ct Oval
$12,464 NZD