Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1543161928

Certificate GIA 1543161928

Diamond specifications and retailer prices

From €2,784 EUR
HK$24,300 HKD
As of November 1, 2026
Save €3,777 EUR (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €6,561 EUR 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 €2,784 to €6,561, a €3,777 spread on the same certified stone. NZ Jewellers lists it at €6,561. 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
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: Nov 1
Current: €6,561 EUR|Low: €2,761 EUR|High: €8,734 EUR|Avg: €4,767 EUR
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 1, 2026
Retailer 11€2,784 EUR
Retailer 12€3,314 EUR
Retailer 14€3,476 EUR
Retailer 3€3,562 EUR
Retailer 13€3,580 EUR
Retailer 2€3,624 EUR
Retailer 4€3,629 EUR
Retailer 6€3,766 EUR
Retailer 9€3,829 EUR
Retailer 8€4,168 EUR
Retailer 10€4,629 EUR
Retailer 7€6,298 EUR
NZ Jewellers€6,561 EUR
Retailer 5€8,734 EUR

40 data points across 14 retailers

19 retailers€2,784 EUR to €6,561 EUR

A
Cheapest Retailer
-
€2,784 EUR
HK$24,300 HKD
Retailer 2
-
€3,048 EUR
$3,405 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
€3,253 EUR
A$5,591 AUD
View
A
Retailer 4
-
€3,314 EUR
$3,702 USD
View
B+
Retailer 5
-
€3,476 EUR
$3,883 USD
View
Final sale: no returns
B+
Retailer 6
-
€3,512 EUR
SGD 5,302 SGD
View
B+
Retailer 7
-
€3,562 EUR
$3,980 USD
View
B+
Retailer 8
-
€3,580 EUR
$4,000 USD
View
B+
Retailer 9
-
€3,624 EUR
£3,188 GBP
View
B+
Retailer 10
-
€3,629 EUR
A$6,238 AUD
View
B+
Retailer 11
-
€3,766 EUR
$4,207 USD
View
B+
Retailer 12
-
€3,766 EUR
$4,207 USD
View
B+
Retailer 13
-
€3,829 EUR
£3,368 GBP
View
B+
Retailer 14
-
€3,898 EUR
$4,355 USD
View
B+
Retailer 15
-
€4,168 EUR
View
B+
Retailer 16
-
€4,346 EUR
$4,855 USD
View
B+
Retailer 17
-
€4,629 EUR
ZAR 83,548 ZAR
View
B
Retailer 18
-
€6,298 EUR
£5,540 GBP
View
Most Expensive
B
NZ Jewellers
2cfba05b-86f4-4373-9dfc-8950396eabee · Oct 30
€6,561 EUR
$7,330 USD
View
18 more retailers have this diamond
Prices start from €2,784 EURSave up to €3,777 EUR

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
€2,784 EUR