Marquise|Natural|GIA

1.20ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6561258837

Certificate GIA 6561258837

Diamond specifications and retailer prices

From $5,596 USD
As of November 5, 2026
Save $4,864 USD (47%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $10,605 USD at NZ Jewellers · As of October 17, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561258837. Listed at 21 retailers as of November 4, 2026, with a 87% 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6561258837
Dimensions10.60 × 5.52 × 3.42 mm
L/W Ratio1.92
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Cloud, Needle, Indented Natural, Natural
Top View
10.60 mm5.52 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561258837
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.0%

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: $6,907 USD|Low: $4,710 USD|High: $10,460 USD|Avg: $6,460 USD|+10.4%
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 7$4,710 USD
Retailer 8$5,424 USD
Retailer 4$5,550 USD
Retailer 11$5,596 USD
Retailer 16$6,050 USD
Retailer 12$6,209 USD
Retailer 6$6,250 USD
Retailer 5$6,267 USD
Retailer 9$6,351 USD
Retailer 15$6,571 USD
Retailer 13$6,590 USD
Retailer 2$6,879 USD
Retailer 1$6,907 USD
Retailer 3$8,629 USD
Retailer 10$8,687 USD
Retailer 14$10,460 USD

34 data points across 16 retailers

21 retailers$5,596 USD to $10,460 USD

Retailer 1
-
$4,710 USD
Price last confirmed 11 days ago
Retailer 2
-
$5,234 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$5,424 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$5,550 USD
View
Price last confirmed 16 days ago
B+
Retailer 5
-
$5,596 USD
View
Retailer 6
-
$6,050 USD
View
Price last confirmed 13 days ago
B
Retailer 7
-
$6,209 USD
View
Retailer 8
-
$6,250 USD
View
Price last confirmed 14 days ago
Retailer 9
-
$6,267 USD
View
Price last confirmed 27 days ago
Retailer 10
-
$6,340 USD
View
Price last confirmed 21 days ago
Retailer 11
-
$6,340 USD
View
Price last confirmed 20 days ago
Retailer 12
-
$6,340 USD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$6,351 USD
View
B
Retailer 14
-
$6,571 USD
View
Final sale: no returns
B
Retailer 15
-
$6,590 USD
View
B
Retailer 16
-
$6,907 USD
View
Retailer 17
-
$7,316 USD
View
Price last confirmed 18 days ago
Retailer 18
-
$8,629 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$8,687 USD
View
B
Retailer 20
-
$10,460 USD
View
Most Expensive
NZ Jewellers
b58c3e6e-0cfd-4753-84d8-470d4dc6847e · Oct 17
$10,605 USD
View
Price last confirmed 19 days ago
20 more retailers have this diamond
Prices start from $5,596 USDSave up to $4,864 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
$5,596 USD