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Heart|Natural|GIA

11.51ct D FL Heart Natural Diamond

EX • D/FL • GIA 6541808390

Certificate GIA 6541808390

Diamond specifications and retailer prices

From £624,749 GBP
As of November 1, 2026
Save £185,664 GBP (23%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £810,413 GBP at RockHer · As of October 31, 2026
View at RockHer

About this 11.51ct natural heart diamond

This 11.51ct natural heart sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541808390. Listed at 11 retailers as of October 31, 2026, with prices from £624,749 to £810,413, a £185,664 spread on the same certified stone. RockHer lists it at £810,413. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

11.51
Carat
D
Colour
FL
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541808390
Dimensions13.70 × 16.09 × 9.06 mm
L/W Ratio1.17
Top View
13.70 mm16.09 mm11.51 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541808390
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 56.3%

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 1
Current: £673,091 GBP|Low: £624,749 GBP|High: £892,333 GBP|Avg: £757,015 GBP|-0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
RockHer
November 3, 2026
Retailer 8£624,749 GBP
Retailer 1£673,091 GBP
Retailer 3£695,249 GBP
Retailer 10£723,862 GBP
Retailer 2£732,429 GBP
Retailer 9£739,933 GBP
Retailer 6£756,877 GBP
Retailer 7£768,468 GBP
Retailer 5£781,708 GBP
Retailer 4£792,327 GBP
RockHer£810,413 GBP

38 data points across 11 retailers

11 retailers£624,749 GBP to £810,413 GBP

A
Cheapest Retailer
-
£624,749 GBP
A
Retailer 2
-
£673,091 GBP
View
A
Retailer 3
-
£695,249 GBP
View
Retailer 4
-
£723,862 GBP
View
Price last confirmed 31 days ago
Retailer 5
-
£732,429 GBP
View
Price last confirmed 25 days ago
B+
Retailer 6
-
£739,933 GBP
View
B+
Retailer 7
-
£756,877 GBP
View
Final sale: no returns
B+
Retailer 8
-
£768,468 GBP
View
B+
Retailer 9
-
£781,708 GBP
View
B+
Retailer 10
-
£792,327 GBP
View
Most Expensive
B+
RockHer
185ec1306 · Oct 31
£810,413 GBP
$1,086,825 USD
View
10 more retailers have this diamond
Prices start from £624,749 GBPSave up to £185,664 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
11.51ct Heart
£624,749 GBP