Oval|Natural|GIA

1.29ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 2518626162

Certificate GIA 2518626162

Diamond specifications and retailer prices

From £2,716 GBP
As of November 6, 2026
Save £2,643 GBP (49%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £5,878 GBP at NZ Jewellers · As of August 30, 2026
View at NZ Jewellers

About this 1.29ct natural oval diamond

This 1.29ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2518626162. Listed at 7 retailers as of November 4, 2026, with a 97% 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

1.29
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.34°
Pavilion angle38.99°
OriginNatural
Grading LabGIA
CertificateGIA 2518626162
Dimensions8.48 × 6.11 × 3.75 mm
L/W Ratio1.39
Top View
8.48 mm6.11 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2518626162
Side View
Table 58.0%Crown 37.34°Girdle: ThickPavilion 38.99°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
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: Nov 6
Current: £3,430 GBP|Low: £2,716 GBP|High: £5,438 GBP|Avg: £3,886 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£2,716 GBP
Retailer 5£3,056 GBP
Retailer 1£3,430 GBP
Retailer 3£3,817 GBP
Retailer 6£4,938 GBP
Retailer 2£5,358 GBP

32 data points across 6 retailers

7 retailers£2,716 GBP to £5,358 GBP

B+
Cheapest Retailer
-
£2,716 GBP
Retailer 2
-
£3,056 GBP
View
Price last confirmed 49 days ago
B+
Retailer 3
-
£3,430 GBP
View
Retailer 4
-
£3,527 GBP
View
Price last confirmed 48 days ago
B
Retailer 5
-
£3,817 GBP
View
B
Retailer 6
-
£5,358 GBP
View
Most Expensive
NZ Jewellers
89ad6de0-0cc2-4c07-8067-e0045ad745a9 · Aug 30
£5,878 GBP
$7,868 USD
View
Price last confirmed 68 days ago
6 more retailers have this diamond
Prices start from £2,716 GBPSave up to £2,643 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+
1.29ct Oval
£2,716 GBP