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Marquise|Natural|GIA

1.50ct I SI1 Marquise Natural Diamond

ID • I/SI1 • GIA 2567290792

Certificate GIA 2567290792

Diamond specifications and retailer prices

From $8,602 AUD
HK$47,100 HKD
As of November 1, 2026
Save $7,364 AUD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $15,967 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two 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 2567290792. Listed at 17 retailers as of November 1, 2026, with prices from $8,602 to $15,967, a $7,364 spread on the same certified stone. MOH London lists it at $15,967. 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2567290792
Dimensions11.31 × 5.96 × 3.78 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Knot, Cavity, Needle
Top View
11.31 mm5.96 mm1.50 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2567290792
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

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: Nov 1
Current: $15,967 AUD|Low: $8,602 AUD|High: $16,400 AUD|Avg: $11,368 AUD|-2.6%
MOH London
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 2, 2026
Retailer 17$8,602 AUD
Retailer 9$9,966 AUD
Retailer 6$10,225 AUD
Retailer 15$10,445 AUD
Retailer 8$10,538 AUD
Retailer 14$10,538 AUD
Retailer 4$10,575 AUD
Retailer 11$10,716 AUD
Retailer 7$10,733 AUD
Retailer 2$10,871 AUD
Retailer 5$11,145 AUD
Retailer 13$11,457 AUD
Retailer 12$11,698 AUD
Retailer 10$12,516 AUD
Retailer 3$13,219 AUD
Retailer 16$14,075 AUD
MOH London$15,967 AUD

30 data points across 17 retailers

17 retailers$8,602 AUD to $15,967 AUD

A
Cheapest Retailer
-
$8,602 AUD
HK$47,100 HKD
Retailer 2
-
$9,966 AUD
SGD 9,438 SGD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$10,225 AUD
SGD 9,684 SGD
View
B+
Retailer 4
-
$10,445 AUD
$7,320 USD
View
B+
Retailer 5
-
$10,538 AUD
$7,385 USD
View
B+
Retailer 6
-
$10,538 AUD
$7,385 USD
View
B+
Retailer 7
-
$10,575 AUD
$7,411 USD
View
Final sale: no returns
B+
Retailer 8
-
$10,716 AUD
£5,913 GBP
View
Retailer 9
-
$10,733 AUD
$7,522 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$10,871 AUD
£5,999 GBP
View
Retailer 11
-
$11,145 AUD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$11,457 AUD
$8,029 USD
View
B+
Retailer 13
-
$11,698 AUD
$8,198 USD
View
B+
Retailer 14
-
$12,516 AUD
€8,354 EUR
View
B
Retailer 15
-
$13,219 AUD
$9,264 USD
View
B+
Retailer 16
-
$14,075 AUD
ZAR 159,352 ZAR
View
Most Expensive
B
MOH London
B88E0531F · Nov 1
$15,967 AUD
£8,811 GBP
View
16 more retailers have this diamond
Prices start from $8,602 AUDSave up to $7,364 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
1.50ct Marquise
$8,602 AUD