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Marquise|Natural|GIA

0.80ct D SI1 Marquise Natural Diamond

VG • D/SI1 • GIA 2557148633

Certificate GIA 2557148633

Diamond specifications and retailer prices

From $1,953 AUD
SGD 1,854 SGD
As of October 27, 2026
Save $1,112 AUD (36%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,605 AUD at Helzberg Diamonds · As of October 25, 2026
View at Helzberg Diamonds

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2557148633. Listed at 14 retailers as of October 26, 2026, with a 57% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.80
Carat
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.93°
Pavilion angle40.15°
OriginNatural
Grading LabGIA
CertificateGIA 2557148633
Dimensions8.83 × 4.75 × 3.12 mm
L/W Ratio1.86
Top View
8.83 mm4.75 mm0.80 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557148633
Side View
Table 56.0%Crown 39.93°Girdle: MED-ETKPavilion 40.15°Culet: NoneDepth 65.7%

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 27
Current: $3,605 AUD|Low: $1,953 AUD|High: $3,828 AUD|Avg: $2,606 AUD|-5.8%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 27, 2026
Retailer 2$1,953 AUD
Retailer 10$2,011 AUD
Retailer 9$2,041 AUD
Retailer 12$2,044 AUD
Retailer 3$2,064 AUD
Retailer 6$2,146 AUD
Retailer 8$2,166 AUD
Retailer 11$2,437 AUD
Retailer 4$2,738 AUD
Retailer 7$2,819 AUD
Retailer 5$3,065 AUD
Retailer 13$3,283 AUD
Helzberg Diamonds$3,605 AUD

32 data points across 13 retailers

14 retailers$1,953 AUD to $3,065 AUD

A
Cheapest Retailer
-
$1,953 AUD
SGD 1,854 SGD
Retailer 2
-
$2,011 AUD
$1,413 USD
View
Price last confirmed 8 days ago
Retailer 3
-
$2,041 AUD
$1,434 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$2,044 AUD
$1,436 USD
View
A
Retailer 5
-
$2,064 AUD
$1,450 USD
View
A
Retailer 6
-
$2,146 AUD
SGD 2,037 SGD
View
Retailer 7
-
$2,166 AUD
£1,198 GBP
View
Price last confirmed 7 days ago
Retailer 8
-
$2,437 AUD
$1,712 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$2,738 AUD
$1,923 USD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$2,819 AUD
€1,886 EUR
View
B+
Retailer 11
-
$2,886 AUD
$2,027 USD
View
B+
Retailer 12
-
$3,065 AUD
$2,153 USD
View
Retailer 13
-
$3,283 AUD
$2,306 USD
View
Price last confirmed 9 days ago
Most Expensive
Helzberg Diamonds
XZRILLNHKOMJJ · Oct 25
$3,605 AUD
$2,532 USD
View
Price last confirmed 8 days ago
13 more retailers have this diamond
Prices start from $1,953 AUDSave up to $1,112 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 Marquise
$1,953 AUD