CaratHunter
Plans
Marquise|Natural|GIA

1.50ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2566386329

Certificate GIA 2566386329

Diamond specifications and retailer prices

From $12,420 AUD
SGD 11,762 SGD
As of October 31, 2026
Save $9,903 AUD (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $22,322 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded G 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 2566386329. Listed at 17 retailers as of October 30, 2026, with prices from $12,420 to $22,322, a $9,903 spread on the same certified stone. NZ Jewellers lists it at $22,322. 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

1.50
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566386329
Dimensions11.08 × 5.84 × 3.77 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
11.08 mm5.84 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566386329
Side View
Table 57.0%CrownGirdle: THK-VTKPavilionCulet: 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: Oct 31
Current: $15,058 AUD|Low: $10,502 AUD|High: $20,918 AUD|Avg: $14,576 AUD
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
Retailer 14
Retailer 15
November 2, 2026
Retailer 6$10,502 AUD
Retailer 4$12,420 AUD
Retailer 15$12,871 AUD
Retailer 5$12,973 AUD
Retailer 14$13,010 AUD
Retailer 12$13,083 AUD
Retailer 11$13,982 AUD
Retailer 7$14,373 AUD
Retailer 9$14,681 AUD
Retailer 1$15,058 AUD
Retailer 13$15,595 AUD
Retailer 8$16,241 AUD
Retailer 3$17,062 AUD
Retailer 2$18,276 AUD
Retailer 10$20,918 AUD

22 data points across 15 retailers

17 retailers$12,420 AUD to $22,322 AUD

Retailer 1
-
$10,502 AUD
HK$57,500 HKD
Price last confirmed 13 days ago
Retailer 2
-
$11,312 AUD
$7,928 USD
View
Price last confirmed 25 days ago
B+
Retailer 3
-
$12,420 AUD
SGD 11,762 SGD
View
Retailer 4
-
$12,871 AUD
$9,020 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$12,975 AUD
$9,093 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$13,010 AUD
CA$12,663 CAD
View
B+
Retailer 7
-
$13,083 AUD
$9,169 USD
View
B+
Retailer 8
-
$13,982 AUD
$9,799 USD
View
Retailer 9
-
$14,373 AUD
$10,073 USD
View
Price last confirmed 15 days ago
B
Retailer 10
-
$14,681 AUD
£8,102 GBP
View
B
Retailer 11
-
$15,058 AUD
$10,553 USD
View
B
Retailer 12
-
$15,595 AUD
$10,929 USD
View
B
Retailer 13
-
$16,241 AUD
€10,840 EUR
View
Retailer 14
-
$17,062 AUD
ZAR 193,167 ZAR
View
Price last confirmed 16 days ago
Retailer 15
-
$18,276 AUD
£10,085 GBP
View
Price last confirmed 14 days ago
B
Retailer 16
-
$20,918 AUD
£11,543 GBP
View
Most Expensive
B
NZ Jewellers
11a2c466-eaa3-4932-8d53-641ef062e906 · Oct 30
$22,322 AUD
$15,644 USD
View
16 more retailers have this diamond
Prices start from $12,420 AUDSave up to $9,903 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+
1.50ct Marquise
$12,420 AUD