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Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6552615471

Certificate GIA 6552615471

Diamond specifications and retailer prices

From $6,983 SGD
$5,460 USD
As of November 1, 2026
Save $8,405 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $15,388 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.6ct natural round diamond

This 1.6ct natural round 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 and certified by GIA 6552615471. Listed at 19 retailers as of October 30, 2026, with prices from $6,983 to $15,388, a $8,405 spread on the same certified stone. NZ Jewellers lists it at $15,388. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552615471
Dimensions7.40 × 7.45 × 4.65 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Crystal, Cloud, Needle
Top View
7.40 mm7.45 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552615471
Side View
Table 57.0%Crown 35.5°Girdle: Med. - Sli. ThickPavilion 40.8°Culet: NoneDepth 62.6%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $15,388 SGD|Low: $6,983 SGD|High: $15,388 SGD|Avg: $9,081 SGD
NZ Jewellers
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
November 2, 2026
Retailer 4$6,983 SGD
Retailer 7$7,269 SGD
Retailer 9$7,369 SGD
Retailer 6$7,694 SGD
Retailer 17$7,694 SGD
Retailer 8$7,744 SGD
Retailer 10$8,206 SGD
Retailer 15$8,335 SGD
Retailer 16$8,464 SGD
Retailer 11$8,764 SGD
Retailer 5$8,822 SGD
Retailer 3$8,930 SGD
Retailer 2$9,462 SGD
Retailer 18$9,617 SGD
Retailer 12$10,010 SGD
Retailer 14$11,304 SGD
Retailer 13$12,821 SGD
NZ Jewellers$15,388 SGD

32 data points across 18 retailers

19 retailers$6,983 SGD to $15,388 SGD

A
Cheapest Retailer
-
$6,983 SGD
$5,460 USD
A
Retailer 2
-
$7,269 SGD
$5,684 USD
View
A
Retailer 3
-
$7,369 SGD
$5,762 USD
View
B+
Retailer 4
-
$7,694 SGD
$6,016 USD
View
Final sale: no returns
B+
Retailer 5
-
$7,694 SGD
$6,016 USD
View
B+
Retailer 6
-
$7,744 SGD
$6,055 USD
View
B+
Retailer 7
-
$8,206 SGD
$6,417 USD
View
B+
Retailer 8
-
$8,335 SGD
$6,517 USD
View
B+
Retailer 9
-
$8,464 SGD
$6,618 USD
View
B+
Retailer 10
-
$8,764 SGD
£5,396 GBP
View
B+
Retailer 11
-
$8,822 SGD
$6,898 USD
View
Retailer 12
-
$8,930 SGD
A$10,742 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$9,462 SGD
£5,826 GBP
View
B+
Retailer 14
-
$9,617 SGD
$7,520 USD
View
B
Retailer 15
-
$10,010 SGD
€7,454 EUR
View
Retailer 16
-
$10,139 SGD
$7,928 USD
View
Price last confirmed 18 days ago
B
Retailer 17
-
$11,304 SGD
ZAR 142,792 ZAR
View
B
Retailer 18
-
$12,821 SGD
£7,894 GBP
View
Most Expensive
B
NZ Jewellers
39c87343-d3a0-47e9-a982-21b63d342af4 · Oct 30
$15,388 SGD
$12,032 USD
View
18 more retailers have this diamond
Prices start from $6,983 SGDSave up to $8,405 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.

A
1.60ct Round
$6,983 SGD