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Round|Natural|GIA

1.60ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2136475204

Certificate GIA 2136475204

Diamond specifications and retailer prices

From $9,367 SGD
$7,327 USD
As of October 31, 2026
Save $12,454 SGD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,821 SGD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1.6ct natural round diamond

This 1.6ct natural round 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 and certified by GIA 2136475204. Listed at 19 retailers as of October 31, 2026, with prices from $9,367 to $21,821, a $12,454 spread on the same certified stone. Diamond Quarter lists it at $21,821. 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

1.60
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2136475204
Dimensions7.54 × 7.53 × 4.57 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Top View
7.54 mm7.53 mm1.60 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2136475204
Side View
Table 62.0%Crown 34°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.7%

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: Oct 31
Current: $13,076 SGD|Low: $9,367 SGD|High: $17,817 SGD|Avg: $12,643 SGD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$9,367 SGD
Retailer 5$11,674 SGD
Retailer 3$11,719 SGD
Retailer 4$11,727 SGD
Retailer 7$12,503 SGD
Retailer 8$12,503 SGD
Retailer 1$13,076 SGD
Retailer 2$17,604 SGD

44 data points across 8 retailers

19 retailers$9,367 SGD to $21,821 SGD

B+
Cheapest Retailer
-
$9,367 SGD
$7,327 USD
B+
Retailer 2
-
$9,580 SGD
$7,494 USD
View
B+
Retailer 3
-
$9,871 SGD
A$11,879 AUD
View
B+
Retailer 4
-
$10,177 SGD
$7,961 USD
View
B
Retailer 5
-
$10,300 SGD
CA$11,190 CAD
View
Retailer 6
-
$11,674 SGD
A$14,049 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$11,719 SGD
£7,218 GBP
View
B
Retailer 8
-
$11,727 SGD
$9,173 USD
View
Retailer 9
-
$11,727 SGD
$9,173 USD
View
Price last confirmed 23 days ago
Retailer 10
-
$11,727 SGD
$9,173 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$12,145 SGD
$9,500 USD
View
B
Retailer 12
-
$12,503 SGD
$9,780 USD
View
B
Retailer 13
-
$12,503 SGD
$9,780 USD
View
B
Retailer 14
-
$12,516 SGD
$9,790 USD
View
B
Retailer 15
-
$12,925 SGD
$10,110 USD
View
B
Retailer 16
-
$13,076 SGD
€9,741 EUR
View
B
Retailer 17
-
$13,486 SGD
$10,549 USD
View
B
Retailer 18
-
$17,604 SGD
£10,843 GBP
View
Most Expensive
B
Diamond Quarter
1.6SI1H21043E43N · Oct 31
$21,821 SGD
£13,440 GBP
View
18 more retailers have this diamond
Prices start from $9,367 SGDSave up to $12,454 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+
1.60ct Round
$9,367 SGD