Marquise|Natural|GIA

1.70ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 3555551182

Certificate GIA 3555551182

Diamond specifications and retailer prices

From $11,189 USD
CA$15,540 CAD
As of November 2, 2026
Save $2,450 USD (18%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $18,362 USD at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3555551182. Listed at 16 retailers as of November 2, 2026, with a relatively tight 22% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.70
Carat
F
Color
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3555551182
Dimensions12.08 × 6.34 × 3.71 mm
L/W Ratio1.91
Culet sizeNone
Top View
12.08 mm6.34 mm1.70 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3555551182
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.5%

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 2
Current: $18,362 USD|Low: $9,955 USD|High: $18,362 USD|Avg: $13,079 USD
NZ Jewellers
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
Retailer 17
Retailer 18
October 20, 2026
Retailer 13$9,955 USD
Retailer 9$10,129 USD
Retailer 6$10,222 USD
Retailer 5$11,017 USD
Retailer 8$11,109 USD
Retailer 18$11,189 USD
Retailer 14$11,935 USD
Retailer 17$12,119 USD
Retailer 11$12,186 USD
Retailer 2$12,483 USD
Retailer 3$12,699 USD
Retailer 7$13,568 USD
Retailer 4$13,639 USD
Retailer 12$13,772 USD
Retailer 15$13,778 USD
Retailer 10$14,492 USD
Retailer 16$17,299 USD
NZ Jewellers$18,362 USD

23 data points across 18 retailers

16 retailers$11,189 USD to $13,639 USD

Retailer 1
-
$9,955 USD
Price last confirmed 15 days ago
Retailer 2
-
$10,129 USD
View
Price last confirmed 14 days ago
Retailer 3
-
$10,222 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$11,017 USD
View
Price last confirmed 21 days ago
Retailer 5
-
$11,109 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$11,189 USD
CA$15,540 CAD
View
Retailer 7
-
$11,935 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$12,119 USD
View
Price last confirmed 17 days ago
Retailer 9
-
$12,186 USD
£9,595 GBP
View
Price last confirmed 14 days ago
B
Retailer 10
-
$12,699 USD
View
Retailer 11
-
$13,568 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$13,639 USD
View
Retailer 13
-
$13,772 USD
View
Price last confirmed 15 days ago
Retailer 14
-
$14,492 USD
View
Price last confirmed 19 days ago
Retailer 15
-
$17,299 USD
£13,621 GBP
View
Price last confirmed 15 days ago
Most Expensive
NZ Jewellers
d17e5db4-c94f-4f59-b6f4-d6d4ce22d2a8 · Oct 17
$18,362 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from $11,189 USDSave up to $2,450 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+
1.70ct Marquise
$11,189 USD