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Heart|Natural|GIA

5.51ct G SI1 Heart Natural Diamond

VG • G/SI1 • GIA 2556123516

Certificate GIA 2556123516

Diamond specifications and retailer prices

From €65,208 EUR
$73,138 USD
As of October 30, 2026
Save €51,551 EUR (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €116,759 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 5.51ct natural heart diamond

This 5.51ct natural heart sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556123516. Listed at 15 retailers as of October 30, 2026, with prices from €65,208 to €116,759, a €51,551 spread on the same certified stone. MOH London lists it at €116,759. 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

5.51
Carat
G
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556123516
Dimensions12.16 × 10.23 × 7.25 mm
L/W Ratio1.19
Top View
12.16 mm10.23 mm5.51 ctG / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556123516
Side View
Table 56.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 59.6%

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: Oct 30
Current: €116,759 EUR|Low: €65,208 EUR|High: €128,027 EUR|Avg: €84,243 EUR|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 4€65,208 EUR
Retailer 16€66,944 EUR
Retailer 5€71,549 EUR
Retailer 3€74,377 EUR
Retailer 7€76,926 EUR
Retailer 15€76,926 EUR
Retailer 11€77,876 EUR
Retailer 13€77,876 EUR
Retailer 2€78,894 EUR
Retailer 6€79,484 EUR
Retailer 12€80,991 EUR
Retailer 14€84,105 EUR
Retailer 10€90,457 EUR
Retailer 9€90,684 EUR
Retailer 8€108,737 EUR
MOH London€116,759 EUR

32 data points across 16 retailers

15 retailers€65,208 EUR to €116,759 EUR

A
Cheapest Retailer
-
€65,208 EUR
$73,138 USD
A
Retailer 2
-
€66,944 EUR
$75,085 USD
View
B+
Retailer 3
-
€71,549 EUR
$80,250 USD
View
B+
Retailer 4
-
€74,377 EUR
$83,422 USD
View
B+
Retailer 5
-
€76,926 EUR
$86,280 USD
View
B+
Retailer 6
-
€76,926 EUR
$86,280 USD
View
B+
Retailer 7
-
€77,876 EUR
$87,346 USD
View
B+
Retailer 8
-
€77,876 EUR
$87,346 USD
View
B+
Retailer 9
-
€78,894 EUR
£69,676 GBP
View
B+
Retailer 10
-
€79,484 EUR
$89,150 USD
View
B+
Retailer 11
-
€80,991 EUR
$90,840 USD
View
B+
Retailer 12
-
€84,105 EUR
$94,333 USD
View
B
Retailer 13
-
€90,457 EUR
ZAR 1,639,043 ZAR
View
B+
Retailer 14
-
€90,684 EUR
View
Most Expensive
B
MOH London
CF9DD30D1 · Nov 1
€116,759 EUR
£103,116 GBP
View
14 more retailers have this diamond
Prices start from €65,208 EURSave up to €51,551 EUR

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
5.51ct Heart
€65,208 EUR