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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 2557248303

Certificate GIA 2557248303

Diamond specifications and retailer prices

From $17,997 NZD
$10,126 USD
As of November 1, 2026
Save $6,300 NZD (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $24,297 NZD at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557248303. Listed at 4 retailers as of November 1, 2026, with prices from $17,997 to $24,297, a $6,300 spread on the same certified stone. 77 Diamonds lists it at $24,297. 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

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557248303
Dimensions11.39 × 6.01 × 3.75 mm
L/W Ratio1.90
Top View
11.39 mm6.01 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557248303
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 62.4%

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 1
Current: $24,297 NZD|Low: $17,997 NZD|High: $25,824 NZD|Avg: $21,408 NZD|+0.9%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 2$17,997 NZD
Retailer 10$18,360 NZD
Retailer 9$19,046 NZD
Retailer 6$20,126 NZD
Retailer 3$20,913 NZD
Retailer 4$21,449 NZD
Retailer 5$22,136 NZD
Retailer 8$22,226 NZD
Retailer 11$22,967 NZD
77 Diamonds$24,297 NZD
Retailer 7$25,824 NZD

33 data points across 11 retailers

4 retailers$17,997 NZD to $24,297 NZD

B+
Cheapest Retailer
-
$17,997 NZD
$10,126 USD
B+
Retailer 2
-
$18,360 NZD
$10,330 USD
View
B
Retailer 3
-
$20,126 NZD
$11,324 USD
View
Most Expensive
B
77 Diamonds
MQZF6ZUFXRS · Nov 1
$24,297 NZD
£10,764 GBP
View
3 more retailers have this diamond
Prices start from $17,997 NZDSave up to $6,300 NZD

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+
1.51ct Marquise
$17,997 NZD