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Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 2566145439

Certificate GIA 2566145439

Diamond specifications and retailer prices

From $10,452 USD
As of October 21, 2026
6 retailers carry this diamond
Most expensive: $12,706 USD at Wholesale Diamonds Direct · As of October 21, 2026
View at Wholesale Diamonds Direct

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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566145439. Listed at 6 retailers as of October 21, 2026. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35.83°
Pavilion angle40.88°
OriginNatural
Grading LabGIA
CertificateGIA 2566145439
Dimensions11.70 × 6.04 × 3.89 mm
L/W Ratio1.94
Culet sizeNone
Top View
11.70 mm6.04 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2566145439
Side View
Table 58.0%Crown 35.83°Girdle: MED-THKPavilion 40.88°Culet: NoneDepth 64.3%

Caratlytics Score

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Oct 21
Current: $12,233 USD|Low: $10,106 USD|High: $17,969 USD|Avg: $11,998 USD|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 23, 2026
Retailer 8$10,106 USD
Retailer 4$10,179 USD
Retailer 9$10,452 USD
Retailer 2$10,480 USD
Retailer 5$10,633 USD
Retailer 3$10,638 USD
Retailer 12$10,644 USD
Retailer 6$10,646 USD
Retailer 1$12,233 USD
Retailer 10$12,258 USD
Retailer 11$12,375 USD
Wholesale Diamonds Direct$12,706 USD
Retailer 7$16,916 USD

31 data points across 13 retailers

6 retailers$10,452 USD to $12,706 USD

Retailer 1
-
$10,452 USD
Price last confirmed 12 days ago
Retailer 2
-
$10,480 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$10,633 USD
£8,372 GBP
View
Price last confirmed 11 days ago
Retailer 4
-
$10,644 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$10,646 USD
View
Price last confirmed 11 days ago
Most Expensive
Wholesale Diamonds Direct
378293475 · Oct 21
$12,706 USD
View
Price last confirmed 12 days ago
5 more retailers have this diamond

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.

1.70ct Marquise
$10,452 USD