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Radiant|Natural|GIA

1.58ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6442407151

Certificate GIA 6442407151

Diamond specifications and retailer prices

From $10,664 SGD
As of November 6, 2026
Save $4,061 SGD (28%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $14,726 SGD at Jared · As of November 6, 2026
View at Jared

About this 1.58ct natural radiant diamond

This 1.58ct natural radiant sits in the one-and-a-half to two 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 6442407151. Listed at 13 retailers as of November 6, 2026, with prices from $10,664 to $14,726, a $4,061 spread on the same certified stone. Jared lists it at $14,726. 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

1.58
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.74°
Pavilion angle61.44°
OriginNatural
Grading LabGIA
CertificateGIA 6442407151
Dimensions7.62 × 5.95 × 4.11 mm
L/W Ratio1.28
Top View
7.62 mm5.95 mm1.58 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6442407151
Side View
Table 66.0%Crown 45.74°Girdle: STK-THKPavilion 61.44°Culet: NoneDepth 69.0%

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: $14,726 SGD|Low: $10,664 SGD|High: $14,726 SGD|Avg: $12,817 SGD
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 7$10,664 SGD
Retailer 6$10,791 SGD
Retailer 4$11,213 SGD
Retailer 9$11,537 SGD
Retailer 12$11,659 SGD
Retailer 2$12,530 SGD
Retailer 8$13,480 SGD
Retailer 3$13,976 SGD
Retailer 10$14,251 SGD
Retailer 11$14,251 SGD
Retailer 5$14,518 SGD
Jared$14,726 SGD

21 data points across 12 retailers

13 retailers$10,664 SGD to $14,726 SGD

B+
Cheapest Retailer
-
$10,664 SGD
Retailer 2
-
$10,791 SGD
View
Price last confirmed 17 days ago
B
Retailer 3
-
$11,213 SGD
View
B
Retailer 4
-
$11,358 SGD
View
B
Retailer 5
-
$11,537 SGD
View
B
Retailer 6
-
$11,659 SGD
View
B
Retailer 7
-
$12,530 SGD
View
B
Retailer 8
-
$13,480 SGD
View
B
Retailer 9
-
$13,976 SGD
View
B
Retailer 10
-
$14,251 SGD
View
B
Retailer 11
-
$14,251 SGD
View
B
Retailer 12
-
$14,518 SGD
View
Most Expensive
B
Jared
146253509 · Nov 6
$14,726 SGD
$11,490 USD
View
12 more retailers have this diamond
Prices start from $10,664 SGDSave up to $4,061 SGD

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+
1.58ct Radiant
$10,664 SGD