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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 1555999788

Certificate GIA 1555999788

Diamond specifications and retailer prices

From $6,605 USD
₹629,011 INR
As of November 2, 2026
Save $7,987 USD (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,592 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1555999788. Listed at 15 retailers as of October 30, 2026, with prices from $6,605 to $14,592, a $7,987 spread on the same certified stone. NZ Jewellers lists it at $14,592. 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

1.51
Carat
D
Color
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555999788
Dimensions10.70 × 5.95 × 3.85 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal, Needle, Indented Natural
Top View
10.70 mm5.95 mm1.51 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555999788
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.7%

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 2
Current: $6,605 USD|Low: $6,591 USD|High: $12,305 USD|Avg: $8,638 USD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 1$6,605 USD
Retailer 5$6,977 USD
Retailer 7$8,053 USD
Retailer 3$8,063 USD
Retailer 6$8,859 USD
Retailer 2$9,031 USD
Retailer 4$12,159 USD

40 data points across 7 retailers

15 retailers$6,605 USD to $14,592 USD

A
Cheapest Retailer
-
$6,605 USD
₹629,011 INR
A
Retailer 2
-
$6,977 USD
View
Final sale: no returns
B+
Retailer 3
-
$7,382 USD
View
B+
Retailer 4
-
$7,540 USD
View
B+
Retailer 5
-
$8,053 USD
View
A
Retailer 6
-
$8,063 USD
£6,349 GBP
View
B+
Retailer 7
-
$8,130 USD
View
B+
Retailer 8
-
$8,724 USD
View
B+
Retailer 9
-
$8,859 USD
View
B+
Retailer 10
-
$8,914 USD
View
B+
Retailer 11
-
$9,031 USD
€8,601 EUR
View
B+
Retailer 12
-
$10,067 USD
View
Retailer 13
-
$10,356 USD
View
Price last confirmed 56 days ago
B
Retailer 14
-
$12,159 USD
£9,574 GBP
View
Most Expensive
B
NZ Jewellers
218bb830-27e3-44fe-b6b1-239dfe633603 · Oct 30
$14,592 USD
View
14 more retailers have this diamond
Prices start from $6,605 USDSave up to $7,987 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
1.51ct Marquise
$6,605 USD