Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7558738826

Certificate GIA 7558738826

Diamond specifications and retailer prices

From $20,640 NZD
$11,633 USD
As of November 1, 2026
Save $878 NZD (4%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $31,716 NZD 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 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 7558738826. Listed at 18 retailers as of November 1, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7558738826
Dimensions9.52 × 6.80 × 4.28 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Cavity, Indented Natural, Needle, Natural
Top View
9.52 mm6.80 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7558738826
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: 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: Nov 1
Current: $31,716 NZD|Low: $18,158 NZD|High: $31,716 NZD|Avg: $23,466 NZD
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
October 15, 2026
Retailer 12$18,158 NZD
Retailer 4$19,278 NZD
Retailer 9$19,801 NZD
Retailer 5$20,877 NZD
Retailer 15$21,004 NZD
Retailer 8$21,042 NZD
Retailer 10$21,555 NZD
Retailer 13$22,755 NZD
Retailer 7$23,105 NZD
Retailer 3$23,882 NZD
Retailer 14$26,256 NZD
Retailer 6$27,437 NZD
Retailer 2$28,775 NZD
Retailer 11$30,037 NZD
NZ Jewellers$31,716 NZD

22 data points across 15 retailers

18 retailers$20,640 NZD to $21,518 NZD

Retailer 1
-
$17,033 NZD
HK$75,000 HKD
Price last confirmed 18 days ago
Retailer 2
-
$18,158 NZD
₹974,656 INR
View
Price last confirmed 18 days ago
Retailer 3
-
$18,265 NZD
$10,294 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$18,839 NZD
SGD 14,348 SGD
View
Price last confirmed 22 days ago
Retailer 5
-
$19,801 NZD
$11,160 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$20,640 NZD
$11,633 USD
View
Retailer 7
-
$20,877 NZD
A$18,102 AUD
View
Price last confirmed 28 days ago
Retailer 8
-
$21,042 NZD
£9,338 GBP
View
Price last confirmed 17 days ago
B+
Retailer 9
-
$21,518 NZD
A$18,658 AUD
View
Retailer 10
-
$21,555 NZD
£9,566 GBP
View
Price last confirmed 17 days ago
Retailer 11
-
$22,755 NZD
$12,825 USD
View
Price last confirmed 18 days ago
Retailer 12
-
$23,105 NZD
$13,022 USD
View
Price last confirmed 33 days ago
Retailer 13
-
$23,305 NZD
$13,135 USD
View
Price last confirmed 18 days ago
Retailer 14
-
$26,256 NZD
$14,798 USD
View
Price last confirmed 19 days ago
Retailer 15
-
$27,437 NZD
ZAR 249,817 ZAR
View
Price last confirmed 32 days ago
Retailer 16
-
$28,775 NZD
£12,770 GBP
View
Price last confirmed 17 days ago
Retailer 17
-
$30,037 NZD
£13,330 GBP
View
Price last confirmed 18 days ago
Most Expensive
NZ Jewellers
95d535e7-cd42-41c3-a4f2-0a3f720d423d · Oct 14
$31,716 NZD
$17,875 USD
View
Price last confirmed 18 days ago
17 more retailers have this diamond
Prices start from $20,640 NZDSave up to $878 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
$20,640 NZD