Marquise|Natural|GIA

1.50ct K SI1 Marquise Natural Diamond

VG • K/SI1 • GIA 5242018791

Certificate GIA 5242018791

Diamond specifications and retailer prices

From $3,852 USD
As of November 6, 2026
Save $4,669 USD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,458 USD at NZ Jewellers · As of September 21, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 5242018791. Listed at 16 retailers as of November 4, 2026, with a 121% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
K
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5242018791
Dimensions10.90 × 5.88 × 3.87 mm
L/W Ratio1.85
Girdle conditionFaceted
Top View
10.90 mm5.88 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242018791
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,204 USD|Low: $3,827 USD|High: $8,696 USD|Avg: $5,377 USD|-3.7%
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
November 6, 2026
Retailer 13$3,852 USD
Retailer 3$3,903 USD
Retailer 11$4,081 USD
Retailer 4$4,246 USD
Retailer 2$4,486 USD
Retailer 6$4,580 USD
Retailer 14$4,607 USD
Retailer 12$4,630 USD
Retailer 8$4,810 USD
Retailer 1$5,204 USD
Retailer 7$5,737 USD
Retailer 9$6,545 USD
Retailer 5$7,818 USD
Retailer 10$8,521 USD

24 data points across 14 retailers

16 retailers$3,852 USD to $8,521 USD

A
Cheapest Retailer
-
$3,852 USD
A
Retailer 2
-
$3,903 USD
View
A
Retailer 3
-
$4,081 USD
View
A
Retailer 4
-
$4,246 USD
View
A
Retailer 5
-
$4,486 USD
View
Final sale: no returns
A
Retailer 6
-
$4,580 USD
View
A
Retailer 7
-
$4,607 USD
View
B+
Retailer 8
-
$4,630 USD
View
B+
Retailer 9
-
$4,810 USD
View
B+
Retailer 10
-
$5,120 USD
View
B+
Retailer 11
-
$5,204 USD
View
B+
Retailer 12
-
$5,737 USD
View
B
Retailer 13
-
$6,545 USD
View
B
Retailer 14
-
$7,818 USD
View
B
Retailer 15
-
$8,521 USD
View
Most Expensive
NZ Jewellers
ef6fab67-c475-4b9d-8407-d5be0307f5ab · Sep 21
$9,458 USD
View
Price last confirmed 46 days ago
15 more retailers have this diamond
Prices start from $3,852 USDSave up to $4,669 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
$3,852 USD