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Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2557726060

Certificate GIA 2557726060

Diamond specifications and retailer prices

From $17,754 SGD
CA$19,281 CAD
As of November 2, 2026
Save $3,550 SGD (17%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $21,304 SGD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 1.7ct natural marquise diamond

This 1.7ct 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 2557726060. Listed at 2 retailers as of November 2, 2026, with prices from $17,754 to $21,304, a $3,550 spread on the same certified stone. 77 Diamonds lists it at $21,304. 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

1.70
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557726060
Dimensions11.39 × 6.19 × 3.94 mm
L/W Ratio1.84
Top View
11.39 mm6.19 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557726060
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 63.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $21,304 SGD|Low: $17,754 SGD|High: $21,730 SGD|Avg: $19,649 SGD|+0.4%
77 Diamonds
Retailer 2
November 3, 2026
Retailer 2$17,754 SGD
77 Diamonds$21,304 SGD

37 data points across 2 retailers

2 retailers$17,754 SGD to $21,304 SGD

B
Cheapest Retailer
-
$17,754 SGD
CA$19,281 CAD
Most Expensive
B
77 Diamonds
MQMBGCH7VQZP · Nov 3
$21,304 SGD
£13,117 GBP
View
1 more retailer has this diamond
Prices start from $17,754 SGDSave up to $3,550 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.

B
1.70ct Marquise
$17,754 SGD