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Marquise|Natural|GIA

1.29ct K SI2 Marquise Natural Diamond

VG • K/SI2 • GIA 2554086119

Certificate GIA 2554086119

Diamond specifications and retailer prices

From £1,879 GBP
$2,515 USD
As of November 6, 2026
3 retailers carry this diamond
Most expensive: £1,879 GBP at The Diamond Guys
View at The Diamond Guys

About this 1.29ct natural marquise diamond

This 1.29ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2554086119. Listed at 3 retailers as of November 6, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.29
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.29°
Pavilion angle38.31°
OriginNatural
Grading LabGIA
CertificateGIA 2554086119
Dimensions10.81 × 5.70 × 3.45 mm
L/W Ratio1.90
Top View
10.81 mm5.70 mm1.29 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554086119
Side View
Table 59.0%Crown 39.29°Girdle: MED-THKPavilion 38.31°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £1,476 GBP|Low: £1,171 GBP|High: £2,536 GBP|Avg: £1,765 GBP|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
The Diamond Guys
October 6, 2026
Retailer 9£1,171 GBP
Retailer 3£1,263 GBP
Retailer 1£1,476 GBP
Retailer 6£1,593 GBP
Retailer 5£1,620 GBP
Retailer 2£1,703 GBP
The Diamond Guys£1,879 GBP
Retailer 4£1,888 GBP
Retailer 8£2,294 GBP
Retailer 7£2,536 GBP

7 data points across 10 retailers

3 retailers

Retailer 1
-
£1,620 GBP
Price last confirmed 32 days ago
Retailer 2
-
£1,703 GBP
View
Price last confirmed 32 days ago
Most Expensive
B+
The Diamond Guys
1963436491 · Nov 6
£1,879 GBP
$2,515 USD
View
2 more retailers have this diamond

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 Marquise
£1,879 GBP