CaratHunter
Plans
Marquise|Natural|GIA

1.03ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 6551278764

Certificate GIA 6551278764

Diamond specifications and retailer prices

From $1,139 USD
As of November 6, 2026
Save $2,440 USD (68%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,579 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 6551278764. Listed at 17 retailers as of November 5, 2026, with prices from $1,139 to $3,579, a $2,440 spread on the same certified stone. NZ Jewellers lists it at $3,579. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551278764
Dimensions10.35 × 5.16 × 3.31 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Indented Natural, Natural
Top View
10.35 mm5.16 mm1.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551278764
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.1%

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 6
Current: $1,501 USD|Low: $1,139 USD|High: $2,584 USD|Avg: $1,678 USD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$1,139 USD
Retailer 7$1,176 USD
Retailer 1$1,501 USD
Retailer 9$1,532 USD
Retailer 2$1,535 USD
Retailer 3$1,620 USD
Retailer 5$1,620 USD
Retailer 10$1,935 USD
Retailer 4$2,032 USD
Retailer 6$2,564 USD

29 data points across 10 retailers

17 retailers$1,139 USD to $3,579 USD

A
Cheapest Retailer
-
$1,139 USD
A
Retailer 2
-
$1,176 USD
View
A
Retailer 3
-
$1,360 USD
View
B+
Retailer 4
-
$1,467 USD
View
Retailer 5
-
$1,467 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$1,501 USD
View
A
Retailer 7
-
$1,532 USD
View
B+
Retailer 8
-
$1,535 USD
View
B+
Retailer 9
-
$1,565 USD
View
B+
Retailer 10
-
$1,620 USD
View
A
Retailer 11
-
$1,620 USD
View
B+
Retailer 12
-
$1,693 USD
View
B+
Retailer 13
-
$1,935 USD
View
B+
Retailer 14
-
$2,032 USD
View
B+
Retailer 15
-
$2,243 USD
View
B+
Retailer 16
-
$2,564 USD
View
Most Expensive
B
NZ Jewellers
bd7bb135-aa6a-4cf1-ab98-94b077c77aa8 · Nov 5
$3,579 USD
View
16 more retailers have this diamond
Prices start from $1,139 USDSave up to $2,440 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
$1,139 USD