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Marquise|Natural|GIA

0.70ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2558170819

Certificate GIA 2558170819

Diamond specifications and retailer prices

From $1,632 AUD
As of November 6, 2026
Save $1,943 AUD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $4,761 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.7ct natural marquise diamond

This 0.7ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558170819. Listed at 25 retailers as of November 1, 2026, with a 119% 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

0.70
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558170819
Dimensions8.48 × 4.64 × 2.95 mm
L/W Ratio1.83
Culet sizeNone
Top View
8.48 mm4.64 mm0.70 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558170819
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.7%

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 6
Current: $4,761 AUD|Low: $1,495 AUD|High: $4,761 AUD|Avg: $2,352 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 7$1,632 AUD
Retailer 8$1,694 AUD
Retailer 6$1,696 AUD
Retailer 2$1,758 AUD
Retailer 15$1,768 AUD
Retailer 16$1,768 AUD
Retailer 3$1,837 AUD
Retailer 5$1,893 AUD
Retailer 17$2,040 AUD
Retailer 12$2,195 AUD
Retailer 10$2,447 AUD
Retailer 9$2,545 AUD
Retailer 4$2,674 AUD
Retailer 11$2,706 AUD
Retailer 13$2,914 AUD
Retailer 14$3,574 AUD
NZ Jewellers$4,761 AUD

33 data points across 17 retailers

25 retailers$1,632 AUD to $3,574 AUD

B+
Cheapest Retailer
-
$1,632 AUD
Final sale: no returns
B+
Retailer 2
-
$1,666 AUD
View
B
Retailer 3
-
$1,694 AUD
View
B+
Retailer 4
-
$1,696 AUD
View
B
Retailer 5
-
$1,758 AUD
View
B
Retailer 6
-
$1,768 AUD
View
Retailer 7
-
$1,768 AUD
View
Price last confirmed 9 days ago
B
Retailer 8
-
$1,837 AUD
View
B
Retailer 9
-
$1,893 AUD
View
B
Retailer 10
-
$1,898 AUD
View
B
Retailer 11
-
$1,911 AUD
View
B
Retailer 12
-
$2,038 AUD
View
B
Retailer 13
-
$2,038 AUD
View
B
Retailer 14
-
$2,040 AUD
View
Retailer 15
-
$2,040 AUD
View
Price last confirmed 17 days ago
B
Retailer 16
-
$2,110 AUD
View
B
Retailer 17
-
$2,195 AUD
View
B
Retailer 18
-
$2,447 AUD
View
B
Retailer 19
-
$2,460 AUD
View
Retailer 20
-
$2,545 AUD
View
Price last confirmed 33 days ago
B
Retailer 21
-
$2,674 AUD
View
B
Retailer 22
-
$2,706 AUD
View
B
Retailer 23
-
$2,914 AUD
View
B
Retailer 24
-
$3,574 AUD
View
Most Expensive
NZ Jewellers
1e14960f-7ff0-4afa-acfc-2c24aea67251 · Nov 5
$4,761 AUD
$3,271 USD
View
Price under review
24 more retailers have this diamond
Prices start from $1,632 AUDSave up to $1,943 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+
0.70ct Marquise
$1,632 AUD