Marquise|Natural|GIA

1.50ct H SI1 Marquise Natural Diamond

GD • H/SI1 • GIA 2557911893

Certificate GIA 2557911893

Diamond specifications and retailer prices

From $6,523 USD
As of November 6, 2026
Save $1,596 USD (20%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,119 USD at 77 Diamonds · As of November 6, 2026
View at 77 Diamonds

About this 1.5ct natural marquise diamond

This 1.5ct natural marquise sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2557911893. Listed at 5 retailers as of November 6, 2026, with prices from $6,523 to $8,119, a $1,596 spread on the same certified stone. 77 Diamonds lists it at $8,119. 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
H
Color
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryFair
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557911893
Dimensions11.28 × 6.08 × 3.72 mm
L/W Ratio1.86
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
11.28 mm6.08 mm1.50 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryFair
FluorescenceNone
CertificateGIA 2557911893
Side View
Table 65.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 61.2%

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: Nov 6
Current: $8,119 USD|Low: $6,523 USD|High: $8,199 USD|Avg: $7,288 USD|+6.0%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$6,523 USD
Retailer 4$7,465 USD
Retailer 3$8,083 USD
77 Diamonds$8,119 USD

46 data points across 4 retailers

5 retailers$6,523 USD to $8,119 USD

B+
Cheapest Retailer
-
$6,523 USD
B
Retailer 2
-
$7,465 USD
View
B
Retailer 3
-
$7,775 USD
View
B
Retailer 4
-
$8,083 USD
View
Most Expensive
B
77 Diamonds
MQCPX43UR4BA · Nov 6
$8,119 USD
£6,393 GBP
View
4 more retailers have this diamond
Prices start from $6,523 USDSave up to $1,596 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
$6,523 USD