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Round|Natural|GIA

5.18ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 1523656372

Certificate GIA 1523656372

Diamond specifications and retailer prices

From €44,578 EUR
$49,803 USD
As of October 30, 2026
Save €32,708 EUR (42%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €77,286 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 5.18ct natural round diamond

This 5.18ct natural round sits in the over five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 1523656372. Listed at 21 retailers as of October 29, 2026, with prices from €44,578 to €77,286, a €32,708 spread on the same certified stone. MOH London lists it at €77,286. 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

5.18
Carat
I
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
Crown angle36°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1523656372
Dimensions11.01 × 10.97 × 6.87 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Twinning Wisp, Indented Natural, Natural
Top View
11.01 mm10.97 mm5.18 ctI / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 1523656372
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.5%

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: €77,286 EUR|Low: €45,121 EUR|High: €77,801 EUR|Avg: €55,296 EUR|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6€45,121 EUR
Retailer 4€46,331 EUR
Retailer 3€47,738 EUR
Retailer 10€49,223 EUR
Retailer 2€49,264 EUR
Retailer 8€51,274 EUR
Retailer 9€55,376 EUR
Retailer 5€59,725 EUR
Retailer 7€63,251 EUR
MOH London€77,286 EUR

36 data points across 10 retailers

21 retailers€44,578 EUR to €77,286 EUR

A
Cheapest Retailer
-
€44,578 EUR
$49,803 USD
A
Retailer 2
-
€44,608 EUR
$49,836 USD
View
B+
Retailer 3
-
€45,112 EUR
$50,400 USD
View
B+
Retailer 4
-
€45,121 EUR
$50,410 USD
View
Final sale: no returns
A
Retailer 5
-
€46,331 EUR
₹4,929,662 INR
View
A
Retailer 6
-
€47,738 EUR
$53,333 USD
View
B+
Retailer 7
-
€49,223 EUR
$54,992 USD
View
A
Retailer 8
-
€49,264 EUR
£43,337 GBP
View
Retailer 9
-
€51,274 EUR
$57,284 USD
View
Price last confirmed 51 days ago
B+
Retailer 10
-
€51,274 EUR
$57,284 USD
View
B+
Retailer 11
-
€51,274 EUR
$57,284 USD
View
B+
Retailer 12
-
€51,376 EUR
$57,397 USD
View
Retailer 13
-
€53,325 EUR
$59,575 USD
View
Price last confirmed 50 days ago
B+
Retailer 14
-
€53,325 EUR
$59,575 USD
View
Retailer 15
-
€53,749 EUR
$60,049 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
€54,700 EUR
$61,111 USD
View
B+
Retailer 17
-
€55,376 EUR
$61,866 USD
View
Retailer 18
-
€55,376 EUR
$61,866 USD
View
Price last confirmed 55 days ago
B+
Retailer 19
-
€59,725 EUR
View
Retailer 20
-
€63,251 EUR
£55,641 GBP
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
5AEB34761 · Oct 29
€77,286 EUR
£67,988 GBP
View
20 more retailers have this diamond
Prices start from €44,578 EURSave up to €32,708 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
5.18ct Round
€44,578 EUR