Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6531761022

Certificate GIA 6531761022

Diamond specifications and retailer prices

From $3,507 USD
HK$27,400 HKD
As of October 30, 2026
Save $4,066 USD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,446 USD at NZ Jewellers · As of September 26, 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 6531761022. Listed at 21 retailers as of October 29, 2026, with a 116% 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531761022
Dimensions6.75 × 6.71 × 4.23 mm
L/W Ratio1.01
Top View
6.75 mm6.71 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531761022
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

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: $5,052 USD|Low: $3,507 USD|High: $8,129 USD|Avg: $4,899 USD|-6.0%
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
October 30, 2026
Retailer 6$3,507 USD
Retailer 7$3,685 USD
Retailer 4$3,770 USD
Retailer 5$3,770 USD
Retailer 13$3,955 USD
Retailer 15$4,070 USD
Retailer 10$4,564 USD
Retailer 3$4,650 USD
Retailer 17$4,650 USD
Retailer 11$4,673 USD
Retailer 14$4,810 USD
Retailer 1$5,052 USD
Retailer 9$5,091 USD
Retailer 8$5,319 USD
Retailer 16$5,500 USD
Retailer 2$5,759 USD
Retailer 12$7,573 USD

24 data points across 17 retailers

21 retailers$3,507 USD to $7,573 USD

A
Cheapest Retailer
-
$3,507 USD
HK$27,400 HKD
A
Retailer 2
-
$3,685 USD
View
A
Retailer 3
-
$3,770 USD
View
A
Retailer 4
-
$3,770 USD
View
A
Retailer 5
-
$3,955 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,070 USD
View
B+
Retailer 7
-
$4,564 USD
£3,594 GBP
View
Retailer 8
-
$4,575 USD
View
Price last confirmed 29 days ago
Retailer 9
-
$4,575 USD
View
Price last confirmed 31 days ago
B+
Retailer 10
-
$4,650 USD
View
B+
Retailer 11
-
$4,650 USD
View
B+
Retailer 12
-
$4,673 USD
£3,679 GBP
View
B+
Retailer 13
-
$4,810 USD
View
B+
Retailer 14
-
$5,052 USD
€4,811 EUR
View
Retailer 15
-
$5,091 USD
A$7,832 AUD
View
Price last confirmed 21 days ago
Retailer 16
-
$5,279 USD
View
Price last confirmed 31 days ago
Retailer 17
-
$5,319 USD
View
Price last confirmed 7 days ago
B+
Retailer 18
-
$5,500 USD
View
B+
Retailer 19
-
$5,759 USD
ZAR 93,041 ZAR
View
B
Retailer 20
-
$7,573 USD
£5,963 GBP
View
Most Expensive
NZ Jewellers
595b7f9b-053c-414c-b2ed-2d1751fec16f · Sep 26
$8,446 USD
View
Price last confirmed 34 days ago
20 more retailers have this diamond
Prices start from $3,507 USDSave up to $4,066 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
$3,507 USD