Round|Natural|GIA

1.28ct D FL Round Natural Diamond

EX • D/FL

Diamond specifications and retailer prices

From $18,320 AUD
$12,869 USD
As of October 30, 2026
Save $10,700 AUD (37%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $29,020 AUD at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA. Listed at 14 retailers as of October 30, 2026, with a 58% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions6.93 × 6.97 × 4.32 mm
L/W Ratio1.01
Top View
6.93 mm6.97 mm1.28 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 59.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.1%

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: $29,020 AUD|Low: $18,127 AUD|High: $29,020 AUD|Avg: $22,925 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 8$18,320 AUD
Retailer 9$19,813 AUD
Retailer 4$20,486 AUD
Retailer 5$21,851 AUD
Retailer 10$21,990 AUD
Retailer 6$22,193 AUD
Retailer 11$22,876 AUD
Retailer 7$23,045 AUD
Retailer 3$25,417 AUD
Retailer 2$26,500 AUD
NZ Jewellers$29,020 AUD

26 data points across 11 retailers

14 retailers$18,320 AUD to $29,020 AUD

A
Cheapest Retailer
-
$18,320 AUD
$12,869 USD
A
Retailer 2
-
$19,813 AUD
CA$19,330 CAD
View
A
Retailer 3
-
$20,486 AUD
$14,390 USD
View
B+
Retailer 4
-
$21,851 AUD
$15,349 USD
View
B+
Retailer 5
-
$21,990 AUD
$15,447 USD
View
Retailer 6
-
$22,193 AUD
$15,589 USD
View
Price last confirmed 44 days ago
B+
Retailer 7
-
$22,193 AUD
$15,589 USD
View
B+
Retailer 8
-
$22,876 AUD
$16,069 USD
View
B+
Retailer 9
-
$23,045 AUD
$16,188 USD
View
Retailer 10
-
$23,045 AUD
$16,188 USD
View
Price last confirmed 44 days ago
B
Retailer 11
-
$25,417 AUD
$17,854 USD
View
B+
Retailer 12
-
$26,500 AUD
View
B
Retailer 13
-
$29,020 AUD
$20,385 USD
View
Most Expensive
NZ Jewellers
d6e3ed6d-8807-4762-a61b-87759e630371 · Sep 19
$29,020 AUD
$20,385 USD
View
Price last confirmed 42 days ago
13 more retailers have this diamond
Prices start from $18,320 AUDSave up to $10,700 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.

A
1.28ct Round
$18,320 AUD