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Marquise|Natural|GIA

0.91ct J SI1 Marquise Natural Diamond

EX • J/SI1 • GIA 2558306145

Certificate GIA 2558306145

Diamond specifications and retailer prices

From $2,598 SGD
£1,600 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $2,598 SGD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

About this 0.91ct natural marquise diamond

This 0.91ct natural marquise sits in the just-under-one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558306145. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

0.91
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.61°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 2558306145
Dimensions10.30 × 5.01 × 2.92 mm
L/W Ratio2.06
Culet sizeNone
Top View
10.30 mm5.01 mm0.91 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2558306145
Side View
Table 58.0%Crown 36.61°Girdle: MED-VTKPavilion 38°Culet: NoneDepth 58.3%

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: $2,598 SGD|Low: $1,398 SGD|High: $3,575 SGD|Avg: $2,651 SGD|-0.8%
77 Diamonds
Retailer 2
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November 2, 2026
Retailer 16$1,398 SGD
Retailer 6$2,066 SGD
Retailer 15$2,097 SGD
Retailer 14$2,125 SGD
Retailer 4$2,285 SGD
Retailer 13$2,580 SGD
77 Diamonds$2,598 SGD
Retailer 8$2,641 SGD
Retailer 12$2,654 SGD
Retailer 3$2,762 SGD
Retailer 10$2,834 SGD
Retailer 2$2,938 SGD
Retailer 5$3,077 SGD
Retailer 11$3,332 SGD
Retailer 7$3,435 SGD
Retailer 9$3,575 SGD

3 data points across 16 retailers

1 retailer

B
77 Diamonds
MQMMCTVQC5E · Nov 2
$2,598 SGD
£1,600 GBP
View

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
0.91ct Marquise
$2,598 SGD