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Marquise|Natural|GIA

1.36ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 2235793227

Certificate GIA 2235793227

Diamond specifications and retailer prices

From £2,530 GBP
As of November 1, 2026
Save £590 GBP (19%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £3,120 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.36ct natural marquise diamond

This 1.36ct natural marquise 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 2235793227. Listed at 2 retailers as of November 1, 2026, with prices from £2,530 to £3,120, a £590 spread on the same certified stone. Blue Nile lists it at £3,120. 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

1.36
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2235793227
Dimensions10.59 × 5.85 × 3.69 mm
L/W Ratio1.81
Girdle conditionFaceted
Culet sizeVery Small
Key to symbols
Feather, Crystal, Pinpoint, Natural, Extra Facet
Top View
10.59 mm5.85 mm1.36 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 2235793227
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: Very SmallDepth 63.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £3,120 GBP|Low: £2,530 GBP|High: £3,380 GBP|Avg: £3,007 GBP
Blue Nile
Retailer 2
Retailer 3
October 18, 2026
Retailer 2£2,530 GBP
Blue Nile£3,120 GBP
Retailer 3£3,156 GBP

4 data points across 3 retailers

2 retailers£2,530 GBP to £3,120 GBP

A
Cheapest Retailer
-
£2,530 GBP
Most Expensive
B
Blue Nile
29233597 · Nov 5
£3,120 GBP
$4,199 USD
View
1 more retailer has this diamond
Prices start from £2,530 GBPSave up to £590 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
1.36ct Marquise
£2,530 GBP