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Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

EX • K/SI1 • GIA 1232882970

Certificate GIA 1232882970

Diamond specifications and retailer prices

From $5,689 USD
As of November 6, 2026
Save $6,363 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,052 USD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232882970. Listed at 20 retailers as of November 5, 2026, with prices from $5,689 to $12,052, a $6,363 spread on the same certified stone. NZ Jewellers lists it at $12,052. 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
K
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Pavilion angle39.74°
OriginNatural
Grading LabGIA
CertificateGIA 1232882970
Dimensions11.84 × 5.72 × 3.73 mm
L/W Ratio2.07
Key to symbols
Crystal, Feather, Needle, Natural
Top View
11.84 mm5.72 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1232882970
Side View
Table 58.0%CrownGirdle: STK-VTKPavilion 39.74°Culet: NoneDepth 65.2%

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: Nov 6
Current: $12,052 USD|Low: $5,689 USD|High: $12,052 USD|Avg: $7,437 USD
NZ Jewellers
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
Retailer 18
Retailer 19
November 6, 2026
Retailer 8$5,689 USD
Retailer 9$5,693 USD
Retailer 17$6,026 USD
Retailer 6$6,065 USD
Retailer 7$6,076 USD
Retailer 3$6,528 USD
Retailer 18$6,610 USD
Retailer 16$6,629 USD
Retailer 11$6,781 USD
Retailer 13$6,842 USD
Retailer 2$6,990 USD
Retailer 19$7,373 USD
Retailer 4$7,532 USD
Retailer 12$7,829 USD
Retailer 10$7,941 USD
Retailer 14$8,792 USD
Retailer 15$10,015 USD
Retailer 5$10,553 USD
NZ Jewellers$12,052 USD

37 data points across 19 retailers

20 retailers$5,689 USD to $12,052 USD

B+
Cheapest Retailer
-
$5,689 USD
B+
Retailer 2
-
$5,693 USD
View
Retailer 3
-
$6,026 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$6,065 USD
View
B+
Retailer 5
-
$6,076 USD
View
B+
Retailer 6
-
$6,427 USD
View
B
Retailer 7
-
$6,528 USD
View
B
Retailer 8
-
$6,610 USD
View
B
Retailer 9
-
$6,629 USD
View
B
Retailer 10
-
$6,781 USD
View
B
Retailer 11
-
$6,842 USD
View
B
Retailer 12
-
$6,990 USD
View
B
Retailer 13
-
$7,373 USD
View
B
Retailer 14
-
$7,532 USD
View
B
Retailer 15
-
$7,829 USD
View
Retailer 16
-
$7,941 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$8,792 USD
View
B
Retailer 18
-
$10,015 USD
View
B
Retailer 19
-
$10,553 USD
View
Most Expensive
B
NZ Jewellers
6bceaecc-c468-4a9f-91af-66ce2ac66a01 · Nov 5
$12,052 USD
View
19 more retailers have this diamond
Prices start from $5,689 USDSave up to $6,363 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
$5,689 USD