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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 $6,029 USD
HK$47,100 HKD
As of November 1, 2026
Save $5,161 USD (46%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,190 USD 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 $6,029 to $11,190, a $5,161 spread on the same certified stone. MOH London lists it at $11,190. 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
Color
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: $11,190 USD|Low: $6,029 USD|High: $11,494 USD|Avg: $7,967 USD|-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$6,029 USD
Retailer 9$6,984 USD
Retailer 6$7,166 USD
Retailer 15$7,320 USD
Retailer 8$7,385 USD
Retailer 14$7,385 USD
Retailer 4$7,411 USD
Retailer 11$7,510 USD
Retailer 7$7,522 USD
Retailer 2$7,619 USD
Retailer 5$7,810 USD
Retailer 13$8,029 USD
Retailer 12$8,198 USD
Retailer 10$8,772 USD
Retailer 3$9,264 USD
Retailer 16$9,864 USD
MOH London$11,190 USD

30 data points across 17 retailers

17 retailers$6,029 USD to $11,190 USD

A
Cheapest Retailer
-
$6,029 USD
HK$47,100 HKD
Retailer 2
-
$6,984 USD
SGD 9,438 SGD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$7,166 USD
SGD 9,684 SGD
View
B+
Retailer 4
-
$7,320 USD
View
B+
Retailer 5
-
$7,385 USD
View
B+
Retailer 6
-
$7,385 USD
View
B+
Retailer 7
-
$7,411 USD
View
Final sale: no returns
B+
Retailer 8
-
$7,510 USD
£5,913 GBP
View
Retailer 9
-
$7,522 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$7,619 USD
£5,999 GBP
View
Retailer 11
-
$7,810 USD
A$12,016 AUD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$8,029 USD
View
B+
Retailer 13
-
$8,198 USD
View
B+
Retailer 14
-
$8,772 USD
€8,354 EUR
View
B
Retailer 15
-
$9,264 USD
View
B+
Retailer 16
-
$9,864 USD
ZAR 159,352 ZAR
View
Most Expensive
B
MOH London
B88E0531F · Nov 1
$11,190 USD
£8,811 GBP
View
16 more retailers have this diamond
Prices start from $6,029 USDSave up to $5,161 USD

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
$6,029 USD