CaratHunter
Plans
Marquise|Natural|GIA

1.00ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6552561278

Certificate GIA 6552561278

Diamond specifications and retailer prices

From $4,057 AUD
As of November 4, 2026
Save $4,307 AUD (51%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,738 AUD at NZ Jewellers · As of October 21, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552561278. Listed at 21 retailers as of November 4, 2026, with a 106% 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

1.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle40.74°
Pavilion angle39.49°
OriginNatural
Grading LabGIA
CertificateGIA 6552561278
Dimensions9.54 × 5.15 × 3.33 mm
L/W Ratio1.85
Culet sizeNone
Top View
9.54 mm5.15 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6552561278
Side View
Table 58.0%Crown 40.74°Girdle: STK-VTKPavilion 39.49°Culet: NoneDepth 64.6%

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: $4,861 AUD|Low: $3,876 AUD|High: $8,488 AUD|Avg: $5,435 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 9$4,057 AUD
Retailer 11$4,193 AUD
Retailer 10$4,407 AUD
Retailer 1$4,861 AUD
Retailer 3$5,157 AUD
Retailer 4$5,157 AUD
Retailer 6$5,190 AUD
Retailer 2$5,328 AUD
Retailer 12$5,377 AUD
Retailer 8$5,845 AUD
Retailer 5$6,121 AUD
Retailer 7$8,364 AUD

33 data points across 12 retailers

21 retailers$4,057 AUD to $8,364 AUD

B+
Cheapest Retailer
-
$4,057 AUD
B+
Retailer 2
-
$4,070 AUD
View
B+
Retailer 3
-
$4,193 AUD
View
Final sale: no returns
B+
Retailer 4
-
$4,407 AUD
View
B+
Retailer 5
-
$4,520 AUD
View
Retailer 6
-
$4,544 AUD
View
Price last confirmed 16 days ago
Retailer 7
-
$4,544 AUD
View
Price last confirmed 20 days ago
Retailer 8
-
$4,718 AUD
View
Price last confirmed 19 days ago
B+
Retailer 9
-
$4,861 AUD
View
B
Retailer 10
-
$5,157 AUD
View
B
Retailer 11
-
$5,157 AUD
View
B+
Retailer 12
-
$5,190 AUD
View
Retailer 13
-
$5,243 AUD
View
Price last confirmed 15 days ago
B
Retailer 14
-
$5,328 AUD
View
Retailer 15
-
$5,377 AUD
View
Price last confirmed 32 days ago
B
Retailer 16
-
$5,490 AUD
View
Retailer 17
-
$5,683 AUD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$5,845 AUD
View
B
Retailer 19
-
$6,121 AUD
View
B
Retailer 20
-
$8,364 AUD
View
Most Expensive
NZ Jewellers
d4967226-1fa5-4959-a89c-9f6477009045 · Oct 21
$8,738 AUD
$6,117 USD
View
Price last confirmed 15 days ago
20 more retailers have this diamond
Prices start from $4,057 AUDSave up to $4,307 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+
1.00ct Marquise
$4,057 AUD