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Marquise|Natural|GIA

1.70ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 5241023174

Certificate GIA 5241023174

Diamond specifications and retailer prices

From HK$104,536 HKD
£10,491 GBP
As of October 28, 2026
Save HK$9,648 HKD (8%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$162,650 HKD at NZ Jewellers · As of October 3, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5241023174. Listed at 10 retailers as of October 27, 2026, with a relatively tight 9% 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.91°
Pavilion angle38.78°
OriginNatural
Grading LabGIA
CertificateGIA 5241023174
Dimensions11.66 × 5.99 × 3.87 mm
L/W Ratio1.95
Culet sizeNone
Top View
11.66 mm5.99 mm1.70 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5241023174
Side View
Table 59.0%Crown 39.91°Girdle: STK-VTKPavilion 38.78°Culet: NoneDepth 64.6%

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: Oct 28
Current: HK$104,536 HKD|Low: HK$63,553 HKD|High: HK$154,251 HKD|Avg: HK$106,314 HKD|+20.7%
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
Retailer 17
Retailer 18
October 28, 2026
Retailer 8HK$63,553 HKD
Retailer 5HK$78,446 HKD
Retailer 4HK$83,153 HKD
Retailer 2HK$88,355 HKD
Retailer 13HK$92,083 HKD
Retailer 10HK$93,808 HKD
Retailer 6HK$100,687 HKD
Retailer 1HK$104,536 HKD
Retailer 16HK$105,522 HKD
Retailer 11HK$106,315 HKD
Retailer 3HK$113,298 HKD
Retailer 18HK$113,298 HKD
Retailer 12HK$114,184 HKD
Retailer 17HK$117,064 HKD
Retailer 14HK$118,427 HKD
Retailer 9HK$127,951 HKD
Retailer 7HK$142,399 HKD
Retailer 15HK$154,251 HKD

15 data points across 18 retailers

10 retailersHK$104,536 HKD to HK$114,184 HKD

Retailer 1
-
HK$88,355 HKD
$11,261 USD
Price last confirmed 7 days ago
Retailer 2
-
HK$92,083 HKD
CA$16,300 CAD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
HK$104,536 HKD
£10,491 GBP
View
Retailer 4
-
HK$105,522 HKD
$13,449 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
HK$106,315 HKD
$13,550 USD
View
B
Retailer 6
-
HK$113,298 HKD
$14,440 USD
View
B
Retailer 7
-
HK$114,184 HKD
$14,553 USD
View
Retailer 8
-
HK$118,427 HKD
€14,375 EUR
View
Price last confirmed 7 days ago
Retailer 9
-
HK$154,251 HKD
£15,480 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
7e516e3a-1d12-4631-bed3-9b2956fe97bc · Oct 3
HK$162,650 HKD
$20,730 USD
View
Price last confirmed 30 days ago
9 more retailers have this diamond
Prices start from HK$104,536 HKDSave up to HK$9,648 HKD

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
HK$104,536 HKD