Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1529068672

Certificate GIA 1529068672

Diamond specifications and retailer prices

From €1,778 EUR
$1,986 USD
As of October 31, 2026
Save €2,506 EUR (58%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,172 EUR at NZ Jewellers · As of October 3, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1529068672. Listed at 24 retailers as of October 29, 2026, with a 141% 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
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1529068672
Dimensions6.78 × 6.73 × 4.24 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Needle, Indented Natural, Natural
Top View
6.78 mm6.73 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1529068672
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.8%

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 31
Current: €2,584 EUR|Low: €1,778 EUR|High: €4,937 EUR|Avg: €2,628 EUR|-0.2%
Retailer 1
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
Retailer 19
November 1, 2026
Retailer 8€1,778 EUR
Retailer 14€1,845 EUR
Retailer 10€1,880 EUR
Retailer 12€1,989 EUR
Retailer 6€1,991 EUR
Retailer 4€2,032 EUR
Retailer 2€2,034 EUR
Retailer 15€2,188 EUR
Retailer 17€2,314 EUR
Retailer 3€2,533 EUR
Retailer 5€2,533 EUR
Retailer 1€2,584 EUR
Retailer 7€2,614 EUR
Retailer 11€2,772 EUR
Retailer 16€2,851 EUR
Retailer 9€2,856 EUR
Retailer 18€2,975 EUR
Retailer 13€2,989 EUR
Retailer 19€4,283 EUR

24 data points across 19 retailers

24 retailers€1,778 EUR to €4,283 EUR

A
Cheapest Retailer
-
€1,778 EUR
$1,986 USD
A
Retailer 2
-
€1,845 EUR
HK$16,100 HKD
View
Retailer 3
-
€1,880 EUR
₹200,004 INR
View
Price last confirmed 16 days ago
A
Retailer 4
-
€1,989 EUR
$2,222 USD
View
B+
Retailer 5
-
€1,991 EUR
$2,224 USD
View
B+
Retailer 6
-
€2,032 EUR
$2,270 USD
View
B+
Retailer 7
-
€2,034 EUR
$2,272 USD
View
Final sale: no returns
B+
Retailer 8
-
€2,188 EUR
$2,445 USD
View
B+
Retailer 9
-
€2,314 EUR
£2,036 GBP
View
Retailer 10
-
€2,474 EUR
$2,764 USD
View
Price last confirmed 24 days ago
Retailer 11
-
€2,474 EUR
$2,764 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
€2,533 EUR
$2,830 USD
View
B
Retailer 13
-
€2,533 EUR
$2,830 USD
View
Retailer 14
-
€2,563 EUR
SGD 3,869 SGD
View
Price last confirmed 17 days ago
Retailer 15
-
€2,569 EUR
$2,870 USD
View
Price last confirmed 16 days ago
B+
Retailer 16
-
€2,584 EUR
£2,273 GBP
View
B
Retailer 17
-
€2,614 EUR
$2,920 USD
View
Retailer 18
-
€2,772 EUR
A$4,764 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
€2,851 EUR
View
Retailer 20
-
€2,854 EUR
$3,189 USD
View
Price last confirmed 22 days ago
B
Retailer 21
-
€2,975 EUR
$3,324 USD
View
B
Retailer 22
-
€2,989 EUR
ZAR 53,946 ZAR
View
B
Retailer 23
-
€4,283 EUR
£3,768 GBP
View
Most Expensive
NZ Jewellers
bf041d67-0ec4-4b79-bf90-36d06de6a248 · Oct 3
€5,172 EUR
$5,778 USD
View
Price last confirmed 28 days ago
23 more retailers have this diamond
Prices start from €1,778 EURSave up to €2,506 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
€1,778 EUR