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Round|Natural|GIA

2.09ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6545936782

Certificate GIA 6545936782

Diamond specifications and retailer prices

From $12,557 AUD
As of November 5, 2026
Save $10,879 AUD (46%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $23,436 AUD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 2.09ct natural round diamond

This 2.09ct natural round sits in the two to three carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6545936782. Listed at 8 retailers as of November 2, 2026, with prices from $12,557 to $23,436, a $10,879 spread on the same certified stone. NZ Jewellers lists it at $23,436. 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

2.09
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6545936782
Dimensions8.15 × 8.20 × 5.02 mm
L/W Ratio1.01
Top View
8.15 mm8.20 mm2.09 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545936782
Side View
Table 58.0%Crown 35°GirdlePavilion 40.6°CuletDepth 61.5%

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 5
Current: $23,436 AUD|Low: $12,117 AUD|High: $23,436 AUD|Avg: $15,650 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11$12,117 AUD
Retailer 10$12,557 AUD
Retailer 9$12,828 AUD
Retailer 5$13,481 AUD
Retailer 8$14,012 AUD
Retailer 7$14,228 AUD
Retailer 4$14,686 AUD
Retailer 12$15,206 AUD
Retailer 2$15,938 AUD
Retailer 3$17,593 AUD
Retailer 6$19,528 AUD
NZ Jewellers$23,436 AUD

39 data points across 12 retailers

8 retailers$12,557 AUD to $23,436 AUD

B+
Cheapest Retailer
-
$12,557 AUD
B+
Retailer 2
-
$12,828 AUD
View
B+
Retailer 3
-
$13,481 AUD
View
B+
Retailer 4
-
$14,012 AUD
View
B+
Retailer 5
-
$14,228 AUD
View
B
Retailer 6
-
$15,938 AUD
View
B
Retailer 7
-
$19,528 AUD
View
Most Expensive
B
NZ Jewellers
fed55c6e-f6ae-4b80-9ead-acc254189b56 · Nov 2
$23,436 AUD
$16,406 USD
View
7 more retailers have this diamond
Prices start from $12,557 AUDSave up to $10,879 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+
2.09ct Round
$12,557 AUD