Marquise|Natural|GIA

1.00ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2557316373

Certificate GIA 2557316373

Diamond specifications and retailer prices

From $2,618 USD
₹249,369 INR
As of November 1, 2026
Save $773 USD (23%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,392 USD at GemTrove · As of November 2, 2026
View at GemTrove

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded G 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 2557316373. Listed at 8 retailers as of November 1, 2026, with prices from $2,618 to $3,392, a $773 spread on the same certified stone. GemTrove lists it at $3,392. 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

1.00
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557316373
Dimensions9.92 × 5.22 × 3.25 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
9.92 mm5.22 mm1.00 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557316373
Side View
Table 63.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 62.3%

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: $2,979 USD|Low: $2,449 USD|High: $3,462 USD|Avg: $2,978 USD|-5.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$2,618 USD
Retailer 3$2,806 USD
Retailer 4$2,835 USD
Retailer 1$2,979 USD
Retailer 6$3,212 USD
Retailer 5$3,329 USD

46 data points across 6 retailers

8 retailers$2,618 USD to $3,392 USD

A
Cheapest Retailer
-
$2,618 USD
₹249,369 INR
A
Retailer 2
-
$2,806 USD
View
B+
Retailer 3
-
$2,835 USD
View
Final sale: no returns
A
Retailer 4
-
$2,979 USD
£2,346 GBP
View
B+
Retailer 5
-
$3,212 USD
SGD 4,341 SGD
View
B+
Retailer 6
-
$3,324 USD
A$5,114 AUD
View
B+
Retailer 7
-
$3,329 USD
View
Most Expensive
B+
GemTrove
GT-N-01273322-98 · Nov 2
$3,392 USD
A$5,218 AUD
View
7 more retailers have this diamond
Prices start from $2,618 USDSave up to $773 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
1.00ct Marquise
$2,618 USD