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Round|Natural|GIA

3.90ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1565777341

Certificate GIA 1565777341

Diamond specifications and retailer prices

From $54,052 AUD
₹3,616,055 INR
As of October 31, 2026
Save $46,581 AUD (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $100,634 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 3.9ct natural round diamond

This 3.9ct natural round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1565777341. Listed at 18 retailers as of October 31, 2026, with prices from $54,052 to $100,634, a $46,581 spread on the same certified stone. MOH London lists it at $100,634. 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

3.90
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1565777341
Dimensions9.97 × 10.01 × 6.25 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Natural
Top View
9.97 mm10.01 mm3.90 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1565777341
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $100,634 AUD|Low: $54,052 AUD|High: $101,172 AUD|Avg: $71,832 AUD|-0.5%
MOH London
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
November 2, 2026
Retailer 17$54,052 AUD
Retailer 11$54,466 AUD
Retailer 12$58,396 AUD
Retailer 16$59,065 AUD
Retailer 5$63,520 AUD
Retailer 10$63,924 AUD
Retailer 6$67,121 AUD
Retailer 3$68,888 AUD
Retailer 15$69,806 AUD
Retailer 8$71,126 AUD
Retailer 2$73,181 AUD
Retailer 9$74,088 AUD
Retailer 13$78,230 AUD
Retailer 4$80,016 AUD
Retailer 14$83,533 AUD
Retailer 7$97,974 AUD
MOH London$100,634 AUD

5 data points across 17 retailers

18 retailers$54,052 AUD to $100,634 AUD

A
Cheapest Retailer
-
$54,052 AUD
₹3,616,055 INR
B+
Retailer 2
-
$54,466 AUD
HK$298,900 HKD
View
B+
Retailer 3
-
$58,396 AUD
$41,020 USD
View
B+
Retailer 4
-
$59,065 AUD
$41,490 USD
View
Final sale: no returns
B+
Retailer 5
-
$59,492 AUD
View
B+
Retailer 6
-
$63,520 AUD
$44,619 USD
View
B+
Retailer 7
-
$63,924 AUD
£35,357 GBP
View
B
Retailer 8
-
$67,121 AUD
$47,149 USD
View
B
Retailer 9
-
$68,888 AUD
$48,390 USD
View
B
Retailer 10
-
$69,806 AUD
$49,035 USD
View
B
Retailer 11
-
$71,126 AUD
$49,962 USD
View
B
Retailer 12
-
$73,181 AUD
€48,958 EUR
View
B
Retailer 13
-
$74,088 AUD
$52,043 USD
View
B
Retailer 14
-
$78,230 AUD
£43,270 GBP
View
B
Retailer 15
-
$80,016 AUD
$56,207 USD
View
B
Retailer 16
-
$83,533 AUD
ZAR 947,933 ZAR
View
B
Retailer 17
-
$97,974 AUD
$68,821 USD
View
Most Expensive
B
MOH London
AE23557C1 · Nov 1
$100,634 AUD
£55,661 GBP
View
17 more retailers have this diamond
Prices start from $54,052 AUDSave up to $46,581 AUD

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
3.90ct Round
$54,052 AUD