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Round|Natural|GIA

1.50ct G SI2 Round Natural Diamond

EX • G/SI2 • GIA 1538231733

Certificate GIA 1538231733

Diamond specifications and retailer prices

From $3,750 USD
HK$29,300 HKD
As of October 30, 2026
Save $5,025 USD (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,776 USD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1538231733. Listed at 20 retailers as of October 28, 2026, with prices from $3,750 to $8,776, a $5,025 spread on the same certified stone. Queensmith lists it at $8,776. 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

1.50
Carat
G
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1538231733
Dimensions7.29 × 7.22 × 4.60 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
7.29 mm7.22 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1538231733
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.4%

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: $8,776 USD|Low: $4,028 USD|High: $8,807 USD|Avg: $5,387 USD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$4,052 USD
Retailer 7$4,381 USD
Retailer 8$4,421 USD
Retailer 9$4,559 USD
Retailer 3$4,602 USD
Retailer 4$4,880 USD
Retailer 6$5,582 USD
Retailer 5$7,908 USD
Queensmith$8,776 USD

27 data points across 9 retailers

20 retailers$3,750 USD to $8,776 USD

A
Cheapest Retailer
-
$3,750 USD
HK$29,300 HKD
A
Retailer 2
-
$4,052 USD
₹385,921 INR
View
A
Retailer 3
-
$4,381 USD
View
A
Retailer 4
-
$4,421 USD
SGD 5,974 SGD
View
A
Retailer 5
-
$4,559 USD
View
Final sale: no returns
A
Retailer 6
-
$4,596 USD
View
A
Retailer 7
-
$4,602 USD
£3,624 GBP
View
A
Retailer 8
-
$4,806 USD
SGD 6,494 SGD
View
A
Retailer 9
-
$4,880 USD
£3,842 GBP
View
A
Retailer 10
-
$4,920 USD
View
Retailer 11
-
$4,939 USD
View
Price last confirmed 31 days ago
Retailer 12
-
$4,939 USD
View
Price last confirmed 14 days ago
Retailer 13
-
$4,939 USD
View
Price last confirmed 30 days ago
Retailer 14
-
$4,939 USD
View
Price last confirmed 10 days ago
A
Retailer 15
-
$5,090 USD
View
A
Retailer 16
-
$5,582 USD
€5,316 EUR
View
Retailer 17
-
$5,699 USD
View
Price last confirmed 30 days ago
B+
Retailer 18
-
$7,908 USD
£6,227 GBP
View
Retailer 19
-
$8,605 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Queensmith
1538231733 · Oct 28
$8,776 USD
£6,910 GBP
View
19 more retailers have this diamond
Prices start from $3,750 USDSave up to $5,025 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
1.50ct Round
$3,750 USD