Round|Natural|GIA

5.18ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2151963685

Certificate GIA 2151963685

Diamond specifications and retailer prices

From $113,629 USD
₹10,821,803 INR
As of November 2, 2026
Save $35,044 USD (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $148,673 USD at Yorxs · As of November 1, 2026
View at Yorxs

About this 5.18ct natural round diamond

This 5.18ct natural round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2151963685. Listed at 4 retailers as of November 1, 2026, with prices from $113,629 to $148,673, a $35,044 spread on the same certified stone. Yorxs lists it at $148,673. 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

5.18
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2151963685
Dimensions11.00 × 11.03 × 6.89 mm
L/W Ratio1.00
Top View
11.00 mm11.03 mm5.18 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2151963685
Side View
Table 58.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.5%

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: Nov 2
Current: $113,629 USD|Low: $113,400 USD|High: $149,336 USD|Avg: $126,270 USD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Yorxs
November 2, 2026
Retailer 1$113,629 USD
Retailer 2$118,966 USD
Retailer 3$124,103 USD
Yorxs$148,673 USD

46 data points across 4 retailers

4 retailers$113,629 USD to $148,673 USD

B+
Cheapest Retailer
-
$113,629 USD
₹10,821,803 INR
B+
Retailer 2
-
$118,966 USD
£93,674 GBP
View
B+
Retailer 3
-
$124,103 USD
View
Final sale: no returns
Most Expensive
B
Yorxs
M06475 · Nov 1
$148,673 USD
€141,593 EUR
View
3 more retailers have this diamond
Prices start from $113,629 USDSave up to $35,044 USD

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+
5.18ct Round
$113,629 USD