Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 7551635158

Certificate GIA 7551635158

Diamond specifications and retailer prices

From $14,916 USD
A$22,948 AUD
As of November 2, 2026
Save $3,941 USD (21%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $19,291 USD at NZ Jewellers · As of October 9, 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7551635158. Listed at 7 retailers as of November 2, 2026, with a 26% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551635158
Dimensions11.55 × 6.09 × 3.97 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
11.55 mm6.09 mm1.70 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551635158
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $19,291 USD|Low: $10,894 USD|High: $21,495 USD|Avg: $14,948 USD
NZ Jewellers
Retailer 2
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November 2, 2026
Retailer 26$10,894 USD
Retailer 7$12,069 USD
Retailer 5$12,482 USD
Retailer 4$12,634 USD
Retailer 14$12,662 USD
Retailer 11$12,746 USD
Retailer 8$13,022 USD
Retailer 12$13,375 USD
Retailer 10$14,538 USD
Retailer 9$14,916 USD
Retailer 17$14,925 USD
Retailer 16$14,934 USD
Retailer 20$14,988 USD
Retailer 22$15,035 USD
Retailer 24$15,319 USD
Retailer 18$15,510 USD
Retailer 19$15,510 USD
Retailer 6$15,527 USD
Retailer 15$15,959 USD
Retailer 23$16,030 USD
Retailer 25$16,148 USD
Retailer 21$16,297 USD
Retailer 2$18,654 USD
Retailer 13$18,857 USD
NZ Jewellers$19,291 USD
Retailer 3$21,495 USD

16 data points across 26 retailers

7 retailers$14,916 USD to $18,857 USD

B
Cheapest Retailer
-
$14,916 USD
A$22,948 AUD
Retailer 2
-
$15,319 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$15,527 USD
View
Price last confirmed 24 days ago
Retailer 4
-
$16,297 USD
View
Price last confirmed 24 days ago
B
Retailer 5
-
$18,654 USD
€17,766 EUR
View
B
Retailer 6
-
$18,857 USD
View
Most Expensive
NZ Jewellers
226bdddd-29fa-4ebe-9711-30ce70275206 · Oct 9
$19,291 USD
View
Price last confirmed 24 days ago
6 more retailers have this diamond
Prices start from $14,916 USDSave up to $3,941 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
$14,916 USD