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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

GD • F/SI1 • GIA 7556418276

Certificate GIA 7556418276

Diamond specifications and retailer prices

From $10,106 SGD
As of November 1, 2026
Save $8,006 SGD (44%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $18,112 SGD at With Clarity · As of November 1, 2026
View at With Clarity

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7556418276. Listed at 13 retailers as of November 1, 2026, with prices from $10,106 to $18,112, a $8,006 spread on the same certified stone. With Clarity lists it at $18,112. 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
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.58°
Pavilion angle40.65°
OriginNatural
Grading LabGIA
CertificateGIA 7556418276
Dimensions10.66 × 5.85 × 3.95 mm
L/W Ratio1.82
Culet sizeNone
Top View
10.66 mm5.85 mm1.51 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556418276
Side View
Table 58.0%Crown 41.58°Girdle: STK-VTKPavilion 40.65°Culet: NoneDepth 67.5%

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 1
Current: $13,388 SGD|Low: $10,106 SGD|High: $19,242 SGD|Avg: $13,457 SGD|-3.9%
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
With Clarity
November 2, 2026
Retailer 9$10,106 SGD
Retailer 10$10,697 SGD
Retailer 11$10,940 SGD
Retailer 8$11,121 SGD
Retailer 6$11,172 SGD
Retailer 12$11,274 SGD
Retailer 2$12,967 SGD
Retailer 7$12,992 SGD
Retailer 13$13,090 SGD
Retailer 4$13,368 SGD
Retailer 1$13,388 SGD
Retailer 5$15,639 SGD
Retailer 3$16,403 SGD
With Clarity$18,112 SGD

26 data points across 14 retailers

13 retailers$10,106 SGD to $18,112 SGD

A
Cheapest Retailer
-
$10,106 SGD
B+
Retailer 2
-
$10,697 SGD
$8,364 USD
View
B+
Retailer 3
-
$10,940 SGD
View
B+
Retailer 4
-
$11,121 SGD
$8,696 USD
View
B+
Retailer 5
-
$11,172 SGD
£6,878 GBP
View
B+
Retailer 6
-
$11,274 SGD
$8,815 USD
View
B+
Retailer 7
-
$12,967 SGD
$10,139 USD
View
B+
Retailer 8
-
$12,992 SGD
$10,159 USD
View
B+
Retailer 9
-
$13,090 SGD
$10,235 USD
View
B
Retailer 10
-
$13,368 SGD
$10,453 USD
View
B
Retailer 11
-
$13,388 SGD
€9,970 EUR
View
B
Retailer 12
-
$16,403 SGD
$12,826 USD
View
Most Expensive
B
With Clarity
7556418276 · Nov 1
$18,112 SGD
$14,162 USD
View
12 more retailers have this diamond
Prices start from $10,106 SGDSave up to $8,006 SGD

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
$10,106 SGD