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Oval|Natural|GIA

1.70ct D SI1 Oval Natural Diamond

ID • D/SI1 • GIA 2537371074

Certificate GIA 2537371074

Diamond specifications and retailer prices

From £5,504 GBP
$7,375 USD
As of October 28, 2026
Save £5,095 GBP (48%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,599 GBP 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 2537371074. Listed at 17 retailers as of October 28, 2026, with prices from £5,504 to £10,599, a £5,095 spread on the same certified stone. NZ Jewellers lists it at £10,599. 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
SymmetryVery Good
FluorescenceMedium
Crown angle38.76°
OriginNatural
Grading LabGIA
CertificateGIA 2537371074
Dimensions9.01 × 6.53 × 4.26 mm
L/W Ratio1.38
Top View
9.01 mm6.53 mm1.70 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2537371074
Side View
Table 62.0%Crown 38.76°Girdle: STK-VTKPavilionCulet: NoneDepth 65.3%

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 28
Current: £10,599 GBP|Low: £5,504 GBP|High: £12,521 GBP|Avg: £7,488 GBP|-15.3%
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 16£5,504 GBP
Retailer 6£5,755 GBP
Retailer 8£6,105 GBP
Retailer 13£6,359 GBP
Retailer 15£6,889 GBP
Retailer 3£6,950 GBP
Retailer 10£6,951 GBP
Retailer 14£6,995 GBP
Retailer 5£7,043 GBP
Retailer 4£7,374 GBP
Retailer 7£7,374 GBP
Retailer 9£7,620 GBP
Retailer 17£7,949 GBP
Retailer 12£8,014 GBP
Retailer 11£9,343 GBP
Retailer 2£9,932 GBP
NZ Jewellers£10,599 GBP

38 data points across 17 retailers

17 retailers£5,504 GBP to £10,599 GBP

A
Cheapest Retailer
-
£5,504 GBP
$7,375 USD
A
Retailer 2
-
£5,755 GBP
$7,711 USD
View
A
Retailer 3
-
£6,105 GBP
$8,180 USD
View
B+
Retailer 4
-
£6,359 GBP
$8,521 USD
View
B+
Retailer 5
-
£6,889 GBP
$9,231 USD
View
B+
Retailer 6
-
£6,950 GBP
$9,312 USD
View
B+
Retailer 7
-
£6,951 GBP
View
B+
Retailer 8
-
£6,995 GBP
$9,373 USD
View
Retailer 9
-
£7,043 GBP
A$14,517 AUD
View
Price last confirmed 30 days ago
B+
Retailer 10
-
£7,374 GBP
$9,880 USD
View
B+
Retailer 11
-
£7,374 GBP
$9,880 USD
View
B+
Retailer 12
-
£7,620 GBP
$10,210 USD
View
B+
Retailer 13
-
£7,949 GBP
$10,651 USD
View
B+
Retailer 14
-
£8,014 GBP
€10,226 EUR
View
B
Retailer 15
-
£9,343 GBP
ZAR 202,230 ZAR
View
B
Retailer 16
-
£9,932 GBP
View
Most Expensive
B
NZ Jewellers
a907e422-b077-4cbe-9271-bd4d69de2e5a · Oct 30
£10,599 GBP
$14,202 USD
View
16 more retailers have this diamond
Prices start from £5,504 GBPSave up to £5,095 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
£5,504 GBP