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Oval|Natural|GIA

1.31ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 7438205199

Certificate GIA 7438205199

Diamond specifications and retailer prices

From £2,484 GBP
As of November 6, 2026
Save £2,187 GBP (47%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,672 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.31ct natural oval diamond

This 1.31ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7438205199. Listed at 8 retailers as of November 6, 2026, with prices from £2,484 to £4,672, a £2,187 spread on the same certified stone. Wholesale Diamonds Direct lists it at £4,672. 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

1.31
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.42°
Pavilion angle38.75°
OriginNatural
Grading LabGIA
CertificateGIA 7438205199
Dimensions8.58 × 5.85 × 3.83 mm
L/W Ratio1.47
Top View
8.58 mm5.85 mm1.31 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7438205199
Side View
Table 59.0%Crown 41.42°Girdle: Extremely ThickPavilion 38.75°Culet: NoneDepth 65.5%

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: £3,436 GBP|Low: £2,451 GBP|High: £3,720 GBP|Avg: £3,195 GBP|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£2,484 GBP
Retailer 4£3,185 GBP
Retailer 1£3,436 GBP
Retailer 2£3,670 GBP

42 data points across 4 retailers

8 retailers£2,484 GBP to £4,672 GBP

B+
Cheapest Retailer
-
£2,484 GBP
B+
Retailer 2
-
£2,484 GBP
View
B+
Retailer 3
-
£2,545 GBP
View
B
Retailer 4
-
£3,185 GBP
View
B
Retailer 5
-
£3,185 GBP
View
B
Retailer 6
-
£3,436 GBP
View
B
Retailer 7
-
£3,670 GBP
View
Most Expensive
C
Wholesale Diamonds Direct
89348821 · Nov 6
£4,672 GBP
$6,253 USD
View
7 more retailers have this diamond
Prices start from £2,484 GBPSave up to £2,187 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+
1.31ct Oval
£2,484 GBP