Round|Natural|GIA

1.26ct D FL Round Natural Diamond

EX • D/FL • GIA 2175377339

Certificate GIA 2175377339

Diamond specifications and retailer prices

From £12,378 GBP
As of November 1, 2026
Save £9,405 GBP (43%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £27,416 GBP at Diamond Quarter · As of November 3, 2026
View at Diamond Quarter

About this 1.26ct natural round diamond

This 1.26ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2175377339. Listed at 7 retailers as of November 1, 2026, with a 76% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.26
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2175377339
Dimensions7.02 × 6.97 × 4.29 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Top View
7.02 mm6.97 mm1.26 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2175377339
Side View
Table 55.0%Crown 34.5°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £14,114 GBP|Low: £12,378 GBP|High: £22,045 GBP|Avg: £16,148 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 4£12,378 GBP
Retailer 1£14,114 GBP
Retailer 5£14,534 GBP
Retailer 2£16,879 GBP
Retailer 3£21,782 GBP

44 data points across 5 retailers

7 retailers£12,378 GBP to £21,782 GBP

A
Cheapest Retailer
-
£12,378 GBP
B+
Retailer 2
-
£14,114 GBP
View
Retailer 3
-
£14,534 GBP
View
Price last confirmed 31 days ago
B+
Retailer 4
-
£16,199 GBP
View
B+
Retailer 5
-
£16,879 GBP
View
B
Retailer 6
-
£21,782 GBP
View
Most Expensive
Diamond Quarter
1.26FLD21396EEAN · Nov 3
£27,416 GBP
View
Price under review
6 more retailers have this diamond
Prices start from £12,378 GBPSave up to £9,405 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
1.26ct Round
£12,378 GBP