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Marquise|Natural|GIA

1.20ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1555950034

Certificate GIA 1555950034

Diamond specifications and retailer prices

From $2,677 USD
As of November 5, 2026
Save $3,073 USD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,750 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.2ct natural marquise diamond

This 1.2ct 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 1555950034. Listed at 13 retailers as of November 5, 2026, with prices from $2,677 to $5,750, a $3,073 spread on the same certified stone. NZ Jewellers lists it at $5,750. 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

1.20
Carat
K
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1555950034
Dimensions11.01 × 5.47 × 3.30 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizeNone
Top View
11.01 mm5.47 mm1.20 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1555950034
Side View
Table 63.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,376 USD|Low: $2,677 USD|High: $5,586 USD|Avg: $3,428 USD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 6$2,677 USD
Retailer 5$2,715 USD
Retailer 7$2,808 USD
Retailer 9$2,990 USD
Retailer 8$3,105 USD
Retailer 1$3,376 USD
Retailer 3$3,415 USD
Retailer 2$3,615 USD
Retailer 4$5,505 USD

43 data points across 9 retailers

13 retailers$2,677 USD to $5,750 USD

B+
Cheapest Retailer
-
$2,677 USD
B+
Retailer 2
-
$2,715 USD
View
B+
Retailer 3
-
$2,808 USD
View
B
Retailer 4
-
$2,990 USD
View
Retailer 5
-
$2,990 USD
View
Price last confirmed 8 days ago
B
Retailer 6
-
$3,105 USD
View
B+
Retailer 7
-
$3,376 USD
View
B+
Retailer 8
-
$3,415 USD
View
B
Retailer 9
-
$3,450 USD
View
B
Retailer 10
-
$3,615 USD
View
Retailer 11
-
$3,828 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$5,505 USD
View
Most Expensive
C
NZ Jewellers
bd7e5fc3-cc88-4599-9f95-a01c6d533cfe · Nov 5
$5,750 USD
View
12 more retailers have this diamond
Prices start from $2,677 USDSave up to $3,073 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.

B+
1.20ct Marquise
$2,677 USD