Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 7558030204

Certificate GIA 7558030204

Diamond specifications and retailer prices

From £5,503 GBP
HK$57,600 HKD
As of October 31, 2026
Save £4,758 GBP (46%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £12,506 GBP at NZ Jewellers · As of October 11, 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 7558030204. Listed at 22 retailers as of October 28, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7558030204
Dimensions9.10 × 6.67 × 4.05 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural
Top View
9.10 mm6.67 mm1.70 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7558030204
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.7%

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: Oct 31
Current: £7,457 GBP|Low: £5,503 GBP|High: £10,374 GBP|Avg: £7,432 GBP|-2.5%
Retailer 1
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
November 1, 2026
Retailer 12£5,503 GBP
Retailer 11£5,881 GBP
Retailer 4£6,051 GBP
Retailer 6£6,185 GBP
Retailer 9£6,225 GBP
Retailer 5£6,642 GBP
Retailer 14£6,731 GBP
Retailer 8£6,811 GBP
Retailer 3£6,858 GBP
Retailer 1£7,457 GBP
Retailer 13£7,969 GBP
Retailer 10£8,959 GBP
Retailer 7£10,163 GBP
Retailer 2£10,260 GBP

28 data points across 14 retailers

22 retailers£5,503 GBP to £10,260 GBP

A
Cheapest Retailer
-
£5,503 GBP
HK$57,600 HKD
A
Retailer 2
-
£5,881 GBP
₹750,452 INR
View
Retailer 3
-
£6,051 GBP
$8,108 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£6,185 GBP
SGD 11,199 SGD
View
Price last confirmed 21 days ago
A
Retailer 5
-
£6,225 GBP
$8,341 USD
View
A
Retailer 6
-
£6,642 GBP
SGD 12,026 SGD
View
B+
Retailer 7
-
£6,731 GBP
$9,019 USD
View
Final sale: no returns
B+
Retailer 8
-
£6,783 GBP
$9,088 USD
View
B+
Retailer 9
-
£6,784 GBP
$9,090 USD
View
B+
Retailer 10
-
£6,811 GBP
View
Retailer 11
-
£6,858 GBP
A$14,137 AUD
View
Price last confirmed 10 days ago
Retailer 12
-
£6,902 GBP
$9,248 USD
View
Price last confirmed 20 days ago
B+
Retailer 13
-
£7,111 GBP
A$14,658 AUD
View
B+
Retailer 14
-
£7,457 GBP
$9,991 USD
View
Retailer 15
-
£7,477 GBP
$10,019 USD
View
Price last confirmed 20 days ago
Retailer 16
-
£7,629 GBP
$10,222 USD
View
Price last confirmed 32 days ago
B+
Retailer 17
-
£7,969 GBP
€10,169 EUR
View
Retailer 18
-
£8,628 GBP
$11,560 USD
View
Price last confirmed 20 days ago
B+
Retailer 19
-
£8,959 GBP
ZAR 193,927 ZAR
View
B
Retailer 20
-
£10,163 GBP
View
B
Retailer 21
-
£10,260 GBP
View
Most Expensive
NZ Jewellers
7d44a42d-ccb9-4664-a682-f3997b542a1b · Oct 11
£12,506 GBP
$16,757 USD
View
Price last confirmed 21 days ago
21 more retailers have this diamond
Prices start from £5,503 GBPSave up to £4,758 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.

A
1.70ct Oval
£5,503 GBP