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Round|Natural|GIA

0.80ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2487911155

Certificate GIA 2487911155

Diamond specifications and retailer prices

From $1,700 AUD
As of November 6, 2026
Save $2,173 AUD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $5,513 AUD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2487911155. Listed at 22 retailers as of November 4, 2026, with a 128% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.80
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2487911155
Dimensions6.05 × 6.01 × 3.58 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
6.05 mm6.01 mm0.80 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2487911155
Side View
Table 61.0%Crown 32.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,756 AUD|Low: $1,700 AUD|High: $3,931 AUD|Avg: $2,584 AUD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9$1,700 AUD
Retailer 1$1,756 AUD
Retailer 2$2,046 AUD
Retailer 10$2,057 AUD
Retailer 7$2,257 AUD
Retailer 3$2,358 AUD
Retailer 4$2,436 AUD
Retailer 5$3,006 AUD
Retailer 6$3,278 AUD
Retailer 8$3,873 AUD

31 data points across 10 retailers

22 retailers$1,700 AUD to $3,873 AUD

A
Cheapest Retailer
-
$1,700 AUD
A
Retailer 2
-
$1,756 AUD
View
Retailer 3
-
$1,764 AUD
View
Price last confirmed 37 days ago
A
Retailer 4
-
$2,046 AUD
View
Final sale: no returns
Retailer 5
-
$2,047 AUD
View
Price last confirmed 39 days ago
A
Retailer 6
-
$2,057 AUD
View
A
Retailer 7
-
$2,057 AUD
View
A
Retailer 8
-
$2,087 AUD
View
Retailer 9
-
$2,101 AUD
View
Price last confirmed 38 days ago
A
Retailer 10
-
$2,164 AUD
View
A
Retailer 11
-
$2,193 AUD
View
Retailer 12
-
$2,217 AUD
View
Price last confirmed 21 days ago
A
Retailer 13
-
$2,257 AUD
View
A
Retailer 14
-
$2,358 AUD
View
Retailer 15
-
$2,363 AUD
View
Price last confirmed 38 days ago
A
Retailer 16
-
$2,436 AUD
View
Retailer 17
-
$2,893 AUD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
$3,006 AUD
View
B+
Retailer 19
-
$3,278 AUD
View
B+
Retailer 20
-
$3,873 AUD
View
Retailer 21
-
$5,408 AUD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
893bb1b9-79b3-4792-9269-21924e1af224 · Sep 26
$5,513 AUD
$3,859 USD
View
Price last confirmed 40 days ago
21 more retailers have this diamond
Prices start from $1,700 AUDSave up to $2,173 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
0.80ct Round
$1,700 AUD