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Round|Natural|GIA

1.80ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 2556637632

Certificate GIA 2556637632

Diamond specifications and retailer prices

From $4,965 AUD
As of November 4, 2026
Save $4,865 AUD (49%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,831 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.8ct natural round diamond

This 1.8ct natural round sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556637632. Listed at 11 retailers as of November 4, 2026, with prices from $4,965 to $9,831, a $4,865 spread on the same certified stone. NZ Jewellers lists it at $9,831. 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

1.80
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2556637632
Dimensions7.70 × 7.76 × 4.81 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural
Top View
7.70 mm7.76 mm1.80 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2556637632
Side View
Table 59.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.2%

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 4
Current: $9,831 AUD|Low: $4,965 AUD|High: $10,251 AUD|Avg: $6,384 AUD|-4.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$4,965 AUD
Retailer 11$5,564 AUD
Retailer 7$5,643 AUD
Retailer 8$5,643 AUD
Retailer 9$5,643 AUD
Retailer 4$5,645 AUD
Retailer 6$5,853 AUD
Retailer 5$6,344 AUD
Retailer 3$6,511 AUD
Retailer 2$7,075 AUD
NZ Jewellers$9,831 AUD

28 data points across 11 retailers

11 retailers$4,965 AUD to $9,831 AUD

B+
Cheapest Retailer
-
$4,965 AUD
B+
Retailer 2
-
$5,564 AUD
View
B+
Retailer 3
-
$5,643 AUD
View
Retailer 4
-
$5,643 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$5,643 AUD
View
B+
Retailer 6
-
$5,645 AUD
View
B+
Retailer 7
-
$5,853 AUD
View
B
Retailer 8
-
$6,344 AUD
View
B
Retailer 9
-
$6,511 AUD
View
B
Retailer 10
-
$7,075 AUD
View
Most Expensive
B
NZ Jewellers
3efc67b2-70d0-41e6-acb4-38293f932ad5 · Nov 5
$9,831 AUD
$6,882 USD
View
10 more retailers have this diamond
Prices start from $4,965 AUDSave up to $4,865 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+
1.80ct Round
$4,965 AUD