Marquise|Natural|GIA

1.20ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 7552545761

Certificate GIA 7552545761

Diamond specifications and retailer prices

From $4,773 USD
As of November 5, 2026
Save $1,994 USD (29%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,051 USD at NZ Jewellers · As of September 20, 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 H 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 7552545761. Listed at 21 retailers as of November 5, 2026, with a 42% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7552545761
Dimensions10.41 × 5.48 × 3.47 mm
L/W Ratio1.90
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud, Crystal, Feather, Cavity
Top View
10.41 mm5.48 mm1.20 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7552545761
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.3%

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: $6,767 USD|Low: $3,929 USD|High: $8,723 USD|Avg: $5,602 USD|+28.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 14$3,929 USD
Retailer 2$4,137 USD
Retailer 3$4,537 USD
Retailer 6$4,657 USD
Retailer 9$4,773 USD
Retailer 5$4,878 USD
Retailer 13$4,960 USD
Retailer 4$5,037 USD
Retailer 10$5,123 USD
Retailer 11$5,248 USD
Retailer 8$5,455 USD
Retailer 12$5,939 USD
Retailer 16$6,378 USD
Retailer 1$6,767 USD
Retailer 15$7,766 USD
Retailer 7$8,665 USD

30 data points across 16 retailers

21 retailers$4,773 USD to $6,767 USD

Retailer 1
-
$3,929 USD
Price last confirmed 12 days ago
Retailer 2
-
$4,137 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$4,537 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$4,657 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$4,773 USD
View
B
Retailer 6
-
$4,935 USD
View
Retailer 7
-
$4,960 USD
View
Price last confirmed 13 days ago
Retailer 8
-
$5,037 USD
View
Price last confirmed 14 days ago
B
Retailer 9
-
$5,123 USD
View
B
Retailer 10
-
$5,248 USD
View
B
Retailer 11
-
$5,389 USD
View
Retailer 12
-
$5,412 USD
View
Price last confirmed 45 days ago
Retailer 13
-
$5,412 USD
View
Price last confirmed 21 days ago
Retailer 14
-
$5,455 USD
View
Price last confirmed 28 days ago
Retailer 15
-
$5,565 USD
View
Price last confirmed 19 days ago
Retailer 16
-
$6,244 USD
View
Price last confirmed 45 days ago
Retailer 17
-
$6,378 USD
View
Price last confirmed 15 days ago
B
Retailer 18
-
$6,767 USD
View
Retailer 19
-
$7,766 USD
View
Price last confirmed 14 days ago
Retailer 20
-
$8,665 USD
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
756ae5f0-3390-4d26-924a-6051f73935bf · Sep 20
$9,051 USD
View
Price last confirmed 47 days ago
20 more retailers have this diamond
Prices start from $4,773 USDSave up to $1,994 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
$4,773 USD