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Marquise|Natural|GIA

1.29ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 2554636157

Certificate GIA 2554636157

Diamond specifications and retailer prices

From £3,805 GBP
As of November 4, 2026
Save £3,271 GBP (46%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £8,055 GBP at NZ Jewellers · As of September 18, 2026
View at NZ Jewellers

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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2554636157. Listed at 19 retailers as of November 4, 2026, with a 86% 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.98°
Pavilion angle38.81°
OriginNatural
Grading LabGIA
CertificateGIA 2554636157
Dimensions10.60 × 5.60 × 3.43 mm
L/W Ratio1.89
Culet sizeNone
Top View
10.60 mm5.60 mm1.29 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2554636157
Side View
Table 57.0%Crown 39.98°Girdle: STK-THKPavilion 38.81°Culet: NoneDepth 61.2%

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: Nov 4
Current: £4,586 GBP|Low: £2,393 GBP|High: £7,261 GBP|Avg: £4,678 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 6, 2026
Retailer 13£2,393 GBP
Retailer 10£3,470 GBP
Retailer 4£3,805 GBP
Retailer 11£4,005 GBP
Retailer 3£4,061 GBP
Retailer 5£4,306 GBP
Retailer 18£4,314 GBP
Retailer 2£4,363 GBP
Retailer 15£4,575 GBP
Retailer 1£4,586 GBP
Retailer 20£4,586 GBP
Retailer 12£4,736 GBP
Retailer 7£4,864 GBP
Retailer 9£4,864 GBP
Retailer 8£5,028 GBP
Retailer 14£5,095 GBP
Retailer 17£5,241 GBP
Retailer 6£5,310 GBP
Retailer 19£7,050 GBP
Retailer 16£7,076 GBP

29 data points across 20 retailers

19 retailers£3,805 GBP to £7,076 GBP

A
Cheapest Retailer
-
£3,805 GBP
A
Retailer 2
-
£4,061 GBP
View
B+
Retailer 3
-
£4,306 GBP
View
B+
Retailer 4
-
£4,314 GBP
View
Retailer 5
-
£4,363 GBP
View
Price last confirmed 50 days ago
B+
Retailer 6
-
£4,575 GBP
View
B+
Retailer 7
-
£4,586 GBP
View
B+
Retailer 8
-
£4,586 GBP
View
B+
Retailer 9
-
£4,736 GBP
View
B+
Retailer 10
-
£4,864 GBP
View
B+
Retailer 11
-
£4,864 GBP
View
B+
Retailer 12
-
£5,028 GBP
View
Retailer 13
-
£5,034 GBP
View
Price last confirmed 53 days ago
B+
Retailer 14
-
£5,095 GBP
View
B+
Retailer 15
-
£5,241 GBP
View
Retailer 16
-
£5,310 GBP
View
Price last confirmed 15 days ago
B
Retailer 17
-
£7,050 GBP
View
B
Retailer 18
-
£7,076 GBP
View
Most Expensive
NZ Jewellers
c115f354-6115-4f76-b1dc-76e0fe7364f0 · Sep 18
£8,055 GBP
$10,781 USD
View
Price last confirmed 50 days ago
18 more retailers have this diamond
Prices start from £3,805 GBPSave up to £3,271 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
1.29ct Marquise
£3,805 GBP