Marquise|Natural|GIA

1.56ct G SI2 Marquise Natural Diamond

ID • G/SI2 • GIA 1545751022

Certificate GIA 1545751022

Diamond specifications and retailer prices

From $9,790 AUD
$6,861 USD
As of October 27, 2026
Save $12,042 AUD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $23,353 AUD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.56ct natural marquise diamond

This 1.56ct natural marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545751022. Listed at 15 retailers as of October 27, 2026, with a 123% 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

1.56
Carat
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle39.56°
Pavilion angle40.13°
OriginNatural
Grading LabGIA
CertificateGIA 1545751022
Dimensions11.07 × 5.99 × 3.85 mm
L/W Ratio1.85
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Crystal
Top View
11.07 mm5.99 mm1.56 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1545751022
Side View
Table 58.0%Crown 39.56°Girdle: ThickPavilion 40.13°Culet: NoneDepth 64.3%

Caratlytics Score

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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: Oct 27
Current: $12,652 AUD|Low: $9,790 AUD|High: $19,693 AUD|Avg: $13,007 AUD|-6.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 28, 2026
Retailer 4$9,790 AUD
Retailer 5$10,695 AUD
Retailer 9$10,819 AUD
Retailer 3$11,344 AUD
Retailer 11$12,216 AUD
Retailer 6$12,222 AUD
Retailer 1$12,652 AUD
Retailer 2$13,099 AUD
Retailer 12$13,099 AUD
Retailer 10$13,342 AUD
Retailer 13$13,541 AUD
Retailer 8$13,622 AUD
Retailer 7$18,216 AUD

28 data points across 13 retailers

15 retailers$9,790 AUD to $21,832 AUD

A
Cheapest Retailer
-
$9,790 AUD
$6,861 USD
A
Retailer 2
-
$10,695 AUD
$7,495 USD
View
Retailer 3
-
$11,344 AUD
$7,950 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$12,216 AUD
$8,561 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$12,222 AUD
£6,745 GBP
View
B+
Retailer 6
-
$12,652 AUD
$8,867 USD
View
Retailer 7
-
$13,099 AUD
$9,180 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$13,099 AUD
$9,180 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$13,342 AUD
$9,350 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$13,541 AUD
$9,490 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$13,622 AUD
€9,092 EUR
View
Price last confirmed 8 days ago
Retailer 12
-
$18,216 AUD
£10,052 GBP
View
Price last confirmed 7 days ago
B
Retailer 13
-
$21,832 AUD
$15,300 USD
View
Retailer 14
-
$21,832 AUD
$15,300 USD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
3ef8db69-834c-4538-a502-b274dd11eb14 · Sep 28
$23,353 AUD
$16,366 USD
View
Price last confirmed 35 days ago
14 more retailers have this diamond
Prices start from $9,790 AUDSave up to $12,042 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
1.56ct Marquise
$9,790 AUD