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1.60ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2136475204

Certificate GIA 2136475204

Diamond specifications and retailer prices

From $13,000 NZD
$7,327 USD
As of October 31, 2026
Save $17,285 NZD (57%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $30,285 NZD 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 $13,000 to $30,285, a $17,285 spread on the same certified stone. Diamond Quarter lists it at $30,285. 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: $18,148 NZD|Low: $13,000 NZD|High: $24,728 NZD|Avg: $17,553 NZD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$13,000 NZD
Retailer 5$16,203 NZD
Retailer 3$16,264 NZD
Retailer 4$16,276 NZD
Retailer 7$17,353 NZD
Retailer 8$17,353 NZD
Retailer 1$18,148 NZD
Retailer 2$24,433 NZD

43 data points across 8 retailers

19 retailers$13,000 NZD to $30,285 NZD

B+
Cheapest Retailer
-
$13,000 NZD
$7,327 USD
B+
Retailer 2
-
$13,297 NZD
$7,494 USD
View
B+
Retailer 3
-
$13,699 NZD
A$11,879 AUD
View
B+
Retailer 4
-
$14,125 NZD
$7,961 USD
View
B
Retailer 5
-
$14,295 NZD
CA$11,190 CAD
View
Retailer 6
-
$16,203 NZD
A$14,049 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$16,264 NZD
£7,218 GBP
View
B
Retailer 8
-
$16,276 NZD
$9,173 USD
View
Retailer 9
-
$16,276 NZD
$9,173 USD
View
Price last confirmed 23 days ago
Retailer 10
-
$16,276 NZD
$9,173 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$16,856 NZD
$9,500 USD
View
B
Retailer 12
-
$17,353 NZD
$9,780 USD
View
B
Retailer 13
-
$17,353 NZD
$9,780 USD
View
B
Retailer 14
-
$17,370 NZD
$9,790 USD
View
B
Retailer 15
-
$17,938 NZD
$10,110 USD
View
B
Retailer 16
-
$18,148 NZD
€9,741 EUR
View
B
Retailer 17
-
$18,717 NZD
$10,549 USD
View
B
Retailer 18
-
$24,433 NZD
£10,843 GBP
View
Most Expensive
B
Diamond Quarter
1.6SI1H21043E43N · Oct 31
$30,285 NZD
£13,440 GBP
View
18 more retailers have this diamond
Prices start from $13,000 NZDSave up to $17,285 NZD

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
$13,000 NZD