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Marquise|Natural|GIA

0.70ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 2558170819

Certificate GIA 2558170819

Diamond specifications and retailer prices

From HK$8,786 HKD
As of November 6, 2026
Save HK$10,463 HKD (54%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: HK$25,636 HKD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.7ct natural marquise diamond

This 0.7ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2558170819. Listed at 25 retailers as of November 1, 2026, with a 119% 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

0.70
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558170819
Dimensions8.48 × 4.64 × 2.95 mm
L/W Ratio1.83
Culet sizeNone
Top View
8.48 mm4.64 mm0.70 ctI / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558170819
Side View
Table 60.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.7%

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 6
Current: HK$25,636 HKD|Low: HK$8,049 HKD|High: HK$25,636 HKD|Avg: HK$12,667 HKD
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
November 6, 2026
Retailer 7HK$8,786 HKD
Retailer 8HK$9,123 HKD
Retailer 6HK$9,131 HKD
Retailer 2HK$9,468 HKD
Retailer 15HK$9,522 HKD
Retailer 16HK$9,522 HKD
Retailer 3HK$9,891 HKD
Retailer 5HK$10,196 HKD
Retailer 17HK$10,988 HKD
Retailer 12HK$11,819 HKD
Retailer 10HK$13,175 HKD
Retailer 9HK$13,708 HKD
Retailer 4HK$14,397 HKD
Retailer 11HK$14,570 HKD
Retailer 13HK$15,690 HKD
Retailer 14HK$19,249 HKD
NZ JewellersHK$25,636 HKD

33 data points across 17 retailers

25 retailersHK$8,786 HKD to HK$19,249 HKD

B+
Cheapest Retailer
-
HK$8,786 HKD
Final sale: no returns
B+
Retailer 2
-
HK$8,974 HKD
View
B
Retailer 3
-
HK$9,123 HKD
View
B+
Retailer 4
-
HK$9,131 HKD
View
B
Retailer 5
-
HK$9,468 HKD
View
B
Retailer 6
-
HK$9,522 HKD
View
Retailer 7
-
HK$9,522 HKD
View
Price last confirmed 9 days ago
B
Retailer 8
-
HK$9,891 HKD
View
B
Retailer 9
-
HK$10,196 HKD
View
B
Retailer 10
-
HK$10,220 HKD
View
B
Retailer 11
-
HK$10,291 HKD
View
B
Retailer 12
-
HK$10,972 HKD
View
B
Retailer 13
-
HK$10,972 HKD
View
B
Retailer 14
-
HK$10,988 HKD
View
Retailer 15
-
HK$10,988 HKD
View
Price last confirmed 17 days ago
B
Retailer 16
-
HK$11,364 HKD
View
B
Retailer 17
-
HK$11,819 HKD
View
B
Retailer 18
-
HK$13,175 HKD
View
B
Retailer 19
-
HK$13,245 HKD
View
Retailer 20
-
HK$13,708 HKD
View
Price last confirmed 33 days ago
B
Retailer 21
-
HK$14,397 HKD
View
B
Retailer 22
-
HK$14,570 HKD
View
B
Retailer 23
-
HK$15,690 HKD
View
B
Retailer 24
-
HK$19,249 HKD
View
Most Expensive
NZ Jewellers
1e14960f-7ff0-4afa-acfc-2c24aea67251 · Nov 5
HK$25,636 HKD
$3,271 USD
View
Price under review
24 more retailers have this diamond
Prices start from HK$8,786 HKDSave up to HK$10,463 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+
0.70ct Marquise
HK$8,786 HKD