Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7558738826

Certificate GIA 7558738826

Diamond specifications and retailer prices

From £8,682 GBP
$11,633 USD
As of October 30, 2026
Save £369 GBP (4%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £13,341 GBP 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 October 30, 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

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £13,341 GBP|Low: £7,638 GBP|High: £13,341 GBP|Avg: £9,870 GBP
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£7,638 GBP
Retailer 4£8,109 GBP
Retailer 9£8,329 GBP
Retailer 5£8,781 GBP
Retailer 15£8,835 GBP
Retailer 8£8,851 GBP
Retailer 10£9,067 GBP
Retailer 13£9,572 GBP
Retailer 7£9,719 GBP
Retailer 3£10,046 GBP
Retailer 14£11,044 GBP
Retailer 6£11,541 GBP
Retailer 2£12,104 GBP
Retailer 11£12,635 GBP
NZ Jewellers£13,341 GBP

22 data points across 15 retailers

18 retailers£8,682 GBP to £9,051 GBP

Retailer 1
-
£7,165 GBP
HK$75,000 HKD
Price last confirmed 17 days ago
Retailer 2
-
£7,638 GBP
₹974,656 INR
View
Price last confirmed 17 days ago
Retailer 3
-
£7,683 GBP
$10,294 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£7,924 GBP
SGD 14,348 SGD
View
Price last confirmed 22 days ago
Retailer 5
-
£8,329 GBP
$11,160 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
£8,682 GBP
$11,633 USD
View
Retailer 7
-
£8,781 GBP
A$18,102 AUD
View
Price last confirmed 28 days ago
Retailer 8
-
£8,851 GBP
View
Price last confirmed 16 days ago
B+
Retailer 9
-
£9,051 GBP
A$18,658 AUD
View
Retailer 10
-
£9,067 GBP
View
Price last confirmed 17 days ago
Retailer 11
-
£9,572 GBP
$12,825 USD
View
Price last confirmed 18 days ago
Retailer 12
-
£9,719 GBP
$13,022 USD
View
Price last confirmed 32 days ago
Retailer 13
-
£9,803 GBP
$13,135 USD
View
Price last confirmed 18 days ago
Retailer 14
-
£11,044 GBP
$14,798 USD
View
Price last confirmed 18 days ago
Retailer 15
-
£11,541 GBP
ZAR 249,817 ZAR
View
Price last confirmed 31 days ago
Retailer 16
-
£12,104 GBP
View
Price last confirmed 16 days ago
Retailer 17
-
£12,635 GBP
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
95d535e7-cd42-41c3-a4f2-0a3f720d423d · Oct 14
£13,341 GBP
$17,875 USD
View
Price last confirmed 18 days ago
17 more retailers have this diamond
Prices start from £8,682 GBPSave up to £369 GBP

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
£8,682 GBP