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Round|Natural|GIA

1.50ct G SI1 Round Natural Diamond

VG • G/SI1 • GIA 2131663925

Certificate GIA 2131663925

Diamond specifications and retailer prices

From $15,220 SGD
$11,871 USD
As of October 29, 2026
Save $12,117 SGD (44%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $30,642 SGD at Diamond Quarter · As of October 28, 2026
View at Diamond Quarter

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 SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 2131663925. Listed at 23 retailers as of October 29, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2131663925
Dimensions7.30 × 7.24 × 4.54 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.30 mm7.24 mm1.50 ctG / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2131663925
Side View
Table 60.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $18,458 SGD|Low: $14,508 SGD|High: $27,518 SGD|Avg: $19,774 SGD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 10$15,220 SGD
Retailer 7$15,334 SGD
Retailer 8$16,685 SGD
Retailer 1$18,458 SGD
Retailer 9$18,571 SGD
Retailer 6$18,706 SGD
Retailer 2$19,587 SGD
Retailer 4$20,944 SGD
Retailer 5$25,442 SGD
Retailer 3$27,337 SGD

44 data points across 10 retailers

23 retailers$15,220 SGD to $27,337 SGD

B
Cheapest Retailer
-
$15,220 SGD
$11,871 USD
B
Retailer 2
-
$15,334 SGD
$11,960 USD
View
B
Retailer 3
-
$15,910 SGD
$12,409 USD
View
B
Retailer 4
-
$16,153 SGD
$12,599 USD
View
B
Retailer 5
-
$16,285 SGD
CA$17,641 CAD
View
B
Retailer 6
-
$16,685 SGD
$13,014 USD
View
Final sale: no returns
B
Retailer 7
-
$17,103 SGD
$13,340 USD
View
B
Retailer 8
-
$17,411 SGD
$13,580 USD
View
B
Retailer 9
-
$17,715 SGD
$13,817 USD
View
B
Retailer 10
-
$18,458 SGD
£11,336 GBP
View
B
Retailer 11
-
$18,571 SGD
$14,485 USD
View
B
Retailer 12
-
$18,706 SGD
A$22,446 AUD
View
B
Retailer 13
-
$18,861 SGD
$14,711 USD
View
B
Retailer 14
-
$19,587 SGD
$15,277 USD
View
B
Retailer 15
-
$19,834 SGD
$15,470 USD
View
B
Retailer 16
-
$19,834 SGD
$15,470 USD
View
B
Retailer 17
-
$20,194 SGD
$15,751 USD
View
B
Retailer 18
-
$20,501 SGD
$15,990 USD
View
B
Retailer 19
-
$20,944 SGD
€15,558 EUR
View
B
Retailer 20
-
$24,665 SGD
$19,238 USD
View
B
Retailer 21
-
$25,442 SGD
ZAR 320,585 ZAR
View
B
Retailer 22
-
$27,337 SGD
£16,789 GBP
View
Most Expensive
B
Diamond Quarter
1.5SI1G21257AF0N · Oct 28
$30,642 SGD
£18,819 GBP
View
Price under review
22 more retailers have this diamond
Prices start from $15,220 SGDSave up to $12,117 SGD

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.

B
1.50ct Round
$15,220 SGD