Marquise|Natural|GIA

1.50ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 7541535497

Certificate GIA 7541535497

Diamond specifications and retailer prices

From $6,981 USD
As of October 30, 2026
Save $5,443 USD (44%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $14,910 USD at NZ Jewellers · As of September 29, 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 I 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 7541535497. Listed at 26 retailers as of October 30, 2026, with a 78% 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

1.50
Carat
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.56°
Pavilion angle39.19°
OriginNatural
Grading LabGIA
CertificateGIA 7541535497
Dimensions11.16 × 5.87 × 3.75 mm
L/W Ratio1.90
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Natural
Top View
11.16 mm5.87 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7541535497
Side View
Table 60.0%Crown 38.56°Girdle: THK-ETKPavilion 39.19°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $12,424 USD|Low: $6,833 USD|High: $12,574 USD|Avg: $8,811 USD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7$6,981 USD
Retailer 6$7,454 USD
Retailer 5$7,455 USD
Retailer 8$7,517 USD
Retailer 3$8,312 USD
Retailer 2$8,696 USD
Retailer 4$9,742 USD
Retailer 1$12,424 USD

38 data points across 8 retailers

26 retailers$6,981 USD to $12,424 USD

B+
Cheapest Retailer
-
$6,981 USD
B+
Retailer 2
-
$7,454 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,455 USD
View
Retailer 4
-
$7,455 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$7,517 USD
View
B+
Retailer 6
-
$7,942 USD
View
Retailer 7
-
$8,076 USD
View
Price last confirmed 41 days ago
Retailer 8
-
$8,076 USD
View
Price last confirmed 24 days ago
Retailer 9
-
$8,076 USD
View
Price last confirmed 10 days ago
Retailer 10
-
$8,201 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
$8,201 USD
View
B+
Retailer 12
-
$8,312 USD
£6,545 GBP
View
B
Retailer 13
-
$8,550 USD
View
B
Retailer 14
-
$8,550 USD
View
B+
Retailer 15
-
$8,696 USD
£6,847 GBP
View
B
Retailer 16
-
$8,830 USD
View
B
Retailer 17
-
$9,319 USD
View
Retailer 18
-
$9,319 USD
View
Price last confirmed 41 days ago
Retailer 19
-
$9,319 USD
View
Price last confirmed 23 days ago
Retailer 20
-
$9,319 USD
View
Price last confirmed 11 days ago
B
Retailer 21
-
$9,742 USD
€9,278 EUR
View
Retailer 22
-
$9,818 USD
View
Price last confirmed 17 days ago
B
Retailer 23
-
$12,424 USD
£9,783 GBP
View
Retailer 24
-
$14,910 USD
View
Price last confirmed 41 days ago
Retailer 25
-
$14,910 USD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
05ef0276-1128-4532-9b9c-db9d5ddd9864 · Sep 29
$14,910 USD
View
Price last confirmed 33 days ago
25 more retailers have this diamond
Prices start from $6,981 USDSave up to $5,443 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.

B+
1.50ct Marquise
$6,981 USD