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Marquise|Natural|GIA

1.03ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1558637331

Certificate GIA 1558637331

Diamond specifications and retailer prices

From $1,618 USD
As of November 4, 2026
Save $2,629 USD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,247 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558637331. Listed at 11 retailers as of November 4, 2026, with prices from $1,618 to $4,247, a $2,629 spread on the same certified stone. NZ Jewellers lists it at $4,247. 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

1.03
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558637331
Dimensions10.33 × 5.25 × 3.28 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.33 mm5.25 mm1.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558637331
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $4,247 USD|Low: $1,542 USD|High: $4,414 USD|Avg: $2,153 USD|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$1,618 USD
Retailer 10$1,626 USD
Retailer 9$1,741 USD
Retailer 11$1,758 USD
Retailer 2$1,781 USD
Retailer 7$1,822 USD
Retailer 4$1,865 USD
Retailer 5$1,932 USD
Retailer 8$2,009 USD
Retailer 6$3,042 USD
NZ Jewellers$4,247 USD

35 data points across 11 retailers

11 retailers$1,618 USD to $4,247 USD

A
Cheapest Retailer
-
$1,618 USD
A
Retailer 2
-
$1,626 USD
View
A
Retailer 3
-
$1,741 USD
View
Retailer 4
-
$1,758 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$1,781 USD
View
A
Retailer 6
-
$1,822 USD
View
A
Retailer 7
-
$1,865 USD
View
A
Retailer 8
-
$1,932 USD
View
A
Retailer 9
-
$2,009 USD
View
B
Retailer 10
-
$3,042 USD
View
Most Expensive
B
NZ Jewellers
517901f1-8871-46ff-b3a7-85dfedceebc3 · Nov 5
$4,247 USD
View
10 more retailers have this diamond
Prices start from $1,618 USDSave up to $2,629 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
1.03ct Marquise
$1,618 USD