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Radiant|Natural|GIA

1.70ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 1559428739

Certificate GIA 1559428739

Diamond specifications and retailer prices

From $4,019 USD
HK$31,400 HKD
Save $4,704 USD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,724 USD at MOH London
View at MOH London

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1559428739. Listed at 14 retailers, with prices from $4,019 to $8,724 at MOH London, a $4,704 spread on the same certified stone. 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
I
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559428739
Dimensions7.80 × 5.98 × 4.21 mm
L/W Ratio1.30
Girdle conditionPolished
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Knot, Cloud, Crystal, Indented Natural, Needle
Top View
7.80 mm5.98 mm1.70 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559428739
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 70.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 29
Current: $8,724 USD|Low: $4,019 USD|High: $8,724 USD|Avg: $5,425 USD|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 1, 2026
Retailer 8$4,019 USD
Retailer 2$4,369 USD
Retailer 4$4,867 USD
Retailer 11$4,935 USD
Retailer 13$5,160 USD
Retailer 9$5,267 USD
Retailer 3$5,355 USD
Retailer 7$5,412 USD
Retailer 12$5,565 USD
Retailer 10$5,692 USD
Retailer 6$6,009 USD
Retailer 5$6,653 USD
MOH London$8,724 USD

44 data points across 13 retailers

14 retailers$4,019 USD to $8,724 USD

A
Cheapest Retailer
-
$4,019 USD
HK$31,400 HKD
A
Retailer 2
-
$4,369 USD
₹416,089 INR
View
A
Retailer 3
-
$4,718 USD
SGD 6,375 SGD
View
A
Retailer 4
-
$4,867 USD
View
Price last confirmed 32 days ago
A
Retailer 5
-
$4,935 USD
View
A
Retailer 6
-
$5,160 USD
SGD 6,973 SGD
View
A
Retailer 7
-
$5,279 USD
£4,157 GBP
View
B+
Retailer 8
-
$5,355 USD
A$8,238 AUD
View
B+
Retailer 9
-
$5,412 USD
View
B+
Retailer 10
-
$5,565 USD
View
B+
Retailer 11
-
$5,692 USD
View
B+
Retailer 12
-
$6,009 USD
€5,723 EUR
View
B+
Retailer 13
-
$6,653 USD
ZAR 107,475 ZAR
View
Price last confirmed 43 days ago
Most Expensive
B
MOH London
C74FA62A7 · Oct 1
$8,724 USD
£6,869 GBP
View
13 more retailers have this diamond
Prices start from $4,019 USDSave up to $4,704 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.

A
1.70ct Radiant
$4,019 USD