CaratHunter
Plans
Round|Natural|GIA

5.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1236627213

Certificate GIA 1236627213

Diamond specifications and retailer prices

From €66,861 EUR
$74,697 USD
As of October 30, 2026
Save €54,439 EUR (45%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €121,300 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct natural round diamond

This 5.51ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236627213. Listed at 25 retailers as of October 29, 2026, with prices from €66,861 to €121,300, a €54,439 spread on the same certified stone. MOH London lists it at €121,300. 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

5.51
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1236627213
Dimensions11.44 × 11.51 × 6.92 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
11.44 mm11.51 mm5.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236627213
Side View
Table 56.0%Crown 31.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €121,300 EUR|Low: €66,861 EUR|High: €122,108 EUR|Avg: €82,982 EUR|+0.4%
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
October 31, 2026
Retailer 12€66,861 EUR
Retailer 9€72,027 EUR
Retailer 8€75,640 EUR
Retailer 5€75,746 EUR
Retailer 2€76,196 EUR
Retailer 11€76,860 EUR
Retailer 4€77,255 EUR
Retailer 10€80,474 EUR
Retailer 13€80,474 EUR
Retailer 3€86,911 EUR
Retailer 6€91,257 EUR
Retailer 7€92,978 EUR
MOH London€121,300 EUR

41 data points across 13 retailers

25 retailers€66,861 EUR to €121,300 EUR

B+
Cheapest Retailer
-
€66,861 EUR
$74,697 USD
B+
Retailer 2
-
€69,412 EUR
$77,547 USD
View
B+
Retailer 3
-
€69,764 EUR
$77,941 USD
View
B+
Retailer 4
-
€70,011 EUR
$78,217 USD
View
Retailer 5
-
€72,027 EUR
A$123,798 AUD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
€73,140 EUR
$81,712 USD
View
B
Retailer 7
-
€74,659 EUR
$83,410 USD
View
B
Retailer 8
-
€75,640 EUR
$84,506 USD
View
Final sale: no returns
B+
Retailer 9
-
€76,196 EUR
£67,028 GBP
View
B
Retailer 10
-
€76,860 EUR
$85,869 USD
View
B
Retailer 11
-
€77,255 EUR
$86,310 USD
View
B+
Retailer 12
-
€79,448 EUR
$88,760 USD
View
B+
Retailer 13
-
€79,448 EUR
$88,760 USD
View
B+
Retailer 14
-
€80,016 EUR
$89,394 USD
View
B
Retailer 15
-
€80,474 EUR
$89,906 USD
View
B
Retailer 16
-
€80,474 EUR
$89,906 USD
View
B
Retailer 17
-
€81,266 EUR
$90,791 USD
View
B
Retailer 18
-
€82,098 EUR
$91,720 USD
View
B
Retailer 19
-
€82,658 EUR
$92,346 USD
View
B
Retailer 20
-
€83,693 EUR
$93,502 USD
View
B
Retailer 21
-
€85,955 EUR
$96,029 USD
View
B
Retailer 22
-
€86,911 EUR
$97,098 USD
View
B
Retailer 23
-
€91,257 EUR
View
B
Retailer 24
-
€92,978 EUR
ZAR 1,678,118 ZAR
View
Most Expensive
B
MOH London
4A018C183 · Oct 29
€121,300 EUR
£106,706 GBP
View
24 more retailers have this diamond
Prices start from €66,861 EURSave up to €54,439 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.

B+
5.51ct Round
€66,861 EUR