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Round|Natural|GIA

2.18ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5241009446

Certificate GIA 5241009446

Diamond specifications and retailer prices

From $23,399 AUD
CA$22,828 CAD
As of October 30, 2026
Save $15,167 AUD (39%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $38,566 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 2.18ct natural round diamond

This 2.18ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5241009446. Listed at 10 retailers as of October 30, 2026, with prices from $23,399 to $38,566, a $15,167 spread on the same certified stone. MOH London lists it at $38,566. 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

2.18
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5241009446
Dimensions8.36 × 8.39 × 5.11 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle
Top View
8.36 mm8.39 mm2.18 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5241009446
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.1%

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: $38,566 AUD|Low: $23,399 AUD|High: $46,799 AUD|Avg: $29,094 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$23,399 AUD
Retailer 10$23,545 AUD
Retailer 3$25,543 AUD
Retailer 6$26,015 AUD
Retailer 8$26,015 AUD
Retailer 2$29,009 AUD
Retailer 7$29,016 AUD
Retailer 9$29,937 AUD
Retailer 4$34,984 AUD
MOH London$38,566 AUD

11 data points across 10 retailers

10 retailers$23,399 AUD to $38,566 AUD

B+
Cheapest Retailer
-
$23,399 AUD
CA$22,828 CAD
B+
Retailer 2
-
$23,545 AUD
$16,539 USD
View
B+
Retailer 3
-
$25,543 AUD
£14,128 GBP
View
B+
Retailer 4
-
$26,015 AUD
$18,274 USD
View
B+
Retailer 5
-
$26,015 AUD
$18,274 USD
View
B
Retailer 6
-
$29,009 AUD
€19,407 EUR
View
B
Retailer 7
-
$29,016 AUD
$20,382 USD
View
Retailer 8
-
$29,937 AUD
$21,029 USD
View
Price last confirmed 20 days ago
B
Retailer 9
-
$34,984 AUD
$24,574 USD
View
Most Expensive
B
MOH London
EAEDAFB53 · Nov 1
$38,566 AUD
£21,331 GBP
View
9 more retailers have this diamond
Prices start from $23,399 AUDSave up to $15,167 AUD

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+
2.18ct Round
$23,399 AUD