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Round|Natural|GIA

1.60ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2507839323

Certificate GIA 2507839323

Diamond specifications and retailer prices

From $7,833 SGD
$6,125 USD
As of November 1, 2026
Save $6,151 SGD (44%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,783 SGD at NZ Jewellers · As of October 20, 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 2507839323. Listed at 18 retailers as of November 1, 2026, with a 79% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceMedium
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2507839323
Dimensions7.46 × 7.41 × 4.60 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.46 mm7.41 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2507839323
Side View
Table 59.0%Crown 36°Girdle: ThickPavilion 40.6°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $16,783 SGD|Low: $6,993 SGD|High: $16,783 SGD|Avg: $10,686 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
November 2, 2026
Retailer 3$7,833 SGD
Retailer 4$8,391 SGD
Retailer 5$8,415 SGD
Retailer 6$9,090 SGD
Retailer 9$9,396 SGD
Retailer 14$9,675 SGD
Retailer 11$10,065 SGD
Retailer 12$10,065 SGD
Retailer 2$10,320 SGD
Retailer 13$10,397 SGD
Retailer 7$10,916 SGD
Retailer 10$12,329 SGD
Retailer 8$13,984 SGD
NZ Jewellers$16,783 SGD

38 data points across 14 retailers

18 retailers$7,833 SGD to $13,984 SGD

B+
Cheapest Retailer
-
$7,833 SGD
$6,125 USD
B+
Retailer 2
-
$7,928 SGD
$6,199 USD
View
Retailer 3
-
$8,391 SGD
$6,561 USD
View
Price last confirmed 17 days ago
B+
Retailer 4
-
$8,415 SGD
$6,580 USD
View
Retailer 5
-
$9,090 SGD
$7,108 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$9,231 SGD
$7,218 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
$9,396 SGD
£5,785 GBP
View
Retailer 8
-
$9,675 SGD
A$11,638 AUD
View
Price last confirmed 11 days ago
B
Retailer 9
-
$10,065 SGD
$7,870 USD
View
B
Retailer 10
-
$10,065 SGD
$7,870 USD
View
B+
Retailer 11
-
$10,320 SGD
£6,354 GBP
View
B+
Retailer 12
-
$10,397 SGD
$8,130 USD
View
Retailer 13
-
$10,490 SGD
$8,202 USD
View
Price last confirmed 12 days ago
B
Retailer 14
-
$10,916 SGD
€8,129 EUR
View
Retailer 15
-
$11,055 SGD
$8,644 USD
View
Price last confirmed 18 days ago
B
Retailer 16
-
$12,329 SGD
ZAR 155,738 ZAR
View
B
Retailer 17
-
$13,984 SGD
£8,610 GBP
View
Most Expensive
NZ Jewellers
718acebf-4c80-42b3-a339-20d5808f87ce · Oct 20
$16,783 SGD
$13,123 USD
View
Price last confirmed 13 days ago
17 more retailers have this diamond
Prices start from $7,833 SGDSave up to $6,151 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
$7,833 SGD