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Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1543161928

Certificate GIA 1543161928

Diamond specifications and retailer prices

From $3,085 USD
HK$24,100 HKD
As of October 30, 2026
Save $4,245 USD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $7,330 USD at NZ Jewellers · As of October 30, 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 1543161928. Listed at 19 retailers as of October 30, 2026, with prices from $3,085 to $7,330, a $4,245 spread on the same certified stone. NZ Jewellers lists it at $7,330. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1543161928
Dimensions6.76 × 6.72 × 4.23 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle, Cavity, Natural
Top View
6.76 mm6.72 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543161928
Side View
Table 57.0%Crown 36.5°Girdle: THN-SLIPavilion 41°Culet: NoneDepth 62.7%

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 30
Current: $7,330 USD|Low: $3,085 USD|High: $9,757 USD|Avg: $5,225 USD
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
October 30, 2026
Retailer 16$3,085 USD
Retailer 13$3,702 USD
Retailer 15$3,883 USD
Retailer 3$3,980 USD
Retailer 14$4,000 USD
Retailer 4$4,055 USD
Retailer 2$4,060 USD
Retailer 6$4,207 USD
Retailer 8$4,207 USD
Retailer 9$4,277 USD
Retailer 10$4,689 USD
Retailer 7$4,855 USD
Retailer 11$5,123 USD
Retailer 12$7,046 USD
NZ Jewellers$7,330 USD
Retailer 5$9,757 USD

40 data points across 16 retailers

19 retailers$3,085 USD to $7,330 USD

A
Cheapest Retailer
-
$3,085 USD
HK$24,100 HKD
A
Retailer 2
-
$3,405 USD
View
A
Retailer 3
-
$3,634 USD
A$5,591 AUD
View
B+
Retailer 4
-
$3,702 USD
View
B+
Retailer 5
-
$3,883 USD
View
Final sale: no returns
B+
Retailer 6
-
$3,923 USD
SGD 5,302 SGD
View
B+
Retailer 7
-
$3,980 USD
View
B+
Retailer 8
-
$4,000 USD
View
B+
Retailer 9
-
$4,055 USD
A$6,238 AUD
View
B+
Retailer 10
-
$4,060 USD
£3,197 GBP
View
B+
Retailer 11
-
$4,207 USD
View
B+
Retailer 12
-
$4,207 USD
View
B+
Retailer 13
-
$4,277 USD
£3,368 GBP
View
B+
Retailer 14
-
$4,355 USD
View
B+
Retailer 15
-
$4,689 USD
€4,466 EUR
View
B+
Retailer 16
-
$4,855 USD
View
B+
Retailer 17
-
$5,123 USD
ZAR 82,767 ZAR
View
B
Retailer 18
-
$7,046 USD
£5,548 GBP
View
Most Expensive
B
NZ Jewellers
2cfba05b-86f4-4373-9dfc-8950396eabee · Oct 30
$7,330 USD
View
18 more retailers have this diamond
Prices start from $3,085 USDSave up to $4,245 USD

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
$3,085 USD