Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2527585822

Certificate GIA 2527585822

Diamond specifications and retailer prices

From $4,379 SGD
$3,425 USD
As of October 25, 2026
Save $4,554 SGD (51%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,758 SGD at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2527585822. Listed at 21 retailers as of October 25, 2026, with a 104% 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

1.20
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2527585822
Dimensions6.82 × 6.80 × 4.22 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.82 mm6.80 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2527585822
Side View
Table 58.0%Crown 34.5°Girdle: Sli. ThickPavilion 41.4°Culet: NoneDepth 62.1%

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: Oct 25
Current: $5,694 SGD|Low: $3,903 SGD|High: $9,029 SGD|Avg: $6,060 SGD|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 7$4,379 SGD
Retailer 8$4,684 SGD
Retailer 3$5,094 SGD
Retailer 2$5,406 SGD
Retailer 1$5,694 SGD
Retailer 4$5,969 SGD
Retailer 9$5,974 SGD
Retailer 5$6,821 SGD
Retailer 6$8,933 SGD

44 data points across 9 retailers

21 retailers$4,379 SGD to $8,933 SGD

A
Cheapest Retailer
-
$4,379 SGD
$3,425 USD
A
Retailer 2
-
$4,465 SGD
$3,493 USD
View
A
Retailer 3
-
$4,684 SGD
$3,664 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,839 SGD
$3,785 USD
View
B+
Retailer 5
-
$4,986 SGD
$3,900 USD
View
Retailer 6
-
$5,074 SGD
$3,969 USD
View
Price last confirmed 29 days ago
Retailer 7
-
$5,074 SGD
$3,969 USD
View
Price last confirmed 31 days ago
B+
Retailer 8
-
$5,094 SGD
A$6,131 AUD
View
B+
Retailer 9
-
$5,406 SGD
£3,329 GBP
View
B+
Retailer 10
-
$5,694 SGD
£3,507 GBP
View
B+
Retailer 11
-
$5,727 SGD
$4,480 USD
View
B+
Retailer 12
-
$5,727 SGD
$4,480 USD
View
Retailer 13
-
$5,855 SGD
$4,580 USD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$5,899 SGD
$4,614 USD
View
B+
Retailer 15
-
$5,919 SGD
$4,630 USD
View
B+
Retailer 16
-
$5,969 SGD
€4,447 EUR
View
Retailer 17
-
$5,974 SGD
A$7,190 AUD
View
Price last confirmed 21 days ago
Retailer 18
-
$6,336 SGD
$4,956 USD
View
Price last confirmed 8 days ago
B+
Retailer 19
-
$6,821 SGD
ZAR 86,191 ZAR
View
B
Retailer 20
-
$8,933 SGD
£5,502 GBP
View
Most Expensive
NZ Jewellers
edb8209f-f13d-4790-8314-98fb76eb4070 · Sep 28
$9,758 SGD
$7,633 USD
View
Price last confirmed 33 days ago
20 more retailers have this diamond
Prices start from $4,379 SGDSave up to $4,554 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
1.20ct Round
$4,379 SGD