CaratHunter
Plans
Marquise|Natural|GIA

1.70ct H SI1 Marquise Natural Diamond

EX • H/SI1 • GIA 2557437761

Certificate GIA 2557437761

Diamond specifications and retailer prices

From $10,291 USD
HK$80,400 HKD
As of October 27, 2026
Save $4,235 USD (29%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,526 USD at Reve Diamonds · As of October 29, 2026
View at Reve Diamonds

About this 1.7ct natural marquise diamond

This 1.7ct natural marquise sits in the one-and-a-half to two carat band, graded H 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 2557437761. Listed at 14 retailers as of October 27, 2026, with prices from $10,291 to $14,526, a $4,235 spread on the same certified stone. Reve Diamonds lists it at $14,526. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2557437761
Dimensions12.73 × 5.86 × 3.53 mm
L/W Ratio2.17
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Indented Natural
Top View
12.73 mm5.86 mm1.70 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557437761
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.2%

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 27
Current: $18,541 USD|Low: $10,291 USD|High: $19,759 USD|Avg: $14,205 USD|-0.9%
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 25, 2026
Retailer 10$10,291 USD
Retailer 9$11,944 USD
Retailer 4$11,996 USD
Retailer 5$12,142 USD
Retailer 6$12,541 USD
Retailer 7$12,865 USD
Retailer 16$12,901 USD
Retailer 11$12,992 USD
Retailer 15$13,086 USD
Retailer 14$13,372 USD
Retailer 18$13,959 USD
Retailer 3$14,177 USD
Retailer 8$14,571 USD
Retailer 17$14,722 USD
Retailer 12$14,873 USD
Retailer 2$17,080 USD
Retailer 1$18,541 USD
Retailer 13$19,759 USD

32 data points across 18 retailers

14 retailers$10,291 USD to $14,526 USD

B+
Cheapest Retailer
-
$10,291 USD
HK$80,400 HKD
Retailer 2
-
$11,595 USD
SGD 15,669 SGD
View
Price last confirmed 21 days ago
Retailer 3
-
$11,944 USD
View
Price last confirmed 8 days ago
Retailer 4
-
$11,996 USD
View
Price last confirmed 7 days ago
Retailer 5
-
$12,142 USD
View
Price last confirmed 9 days ago
Retailer 6
-
$12,865 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$12,901 USD
A$19,848 AUD
View
Price last confirmed 9 days ago
Retailer 8
-
$12,992 USD
£10,230 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
$13,086 USD
View
Price last confirmed 8 days ago
Retailer 10
-
$13,372 USD
£10,529 GBP
View
Price last confirmed 9 days ago
Retailer 11
-
$13,959 USD
View
Price last confirmed 10 days ago
Retailer 12
-
$13,995 USD
View
Price last confirmed 7 days ago
Retailer 13
-
$14,177 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Reve Diamonds
49609C2F6 · Oct 25
$14,526 USD
View
13 more retailers have this diamond
Prices start from $10,291 USDSave up to $4,235 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
$10,291 USD